Zigbee protocol

Some of the technical details of the Zigbee protocol given below :

• Zigbee offers a wireless range of 70m indoors and 400m outdoor
• Zigbee protocol operates on a single frequency of only 2.4 GHz.
• Low latency and low duty cycle lead to achieving low power consumption giving sensors and the long-lasting battery life
• DSSS helps to the offers data rate for quicker response
• Cater to thousand of devices for spread networks
• It offers network flexibility to cover homes of all size by offering for multiple networks like point-to-point, point-to-multipoint mesh network
• Zigbee can easily integrate monitoring and control of light systems, security system, as well as motion detection

Zigbee protocol operate 802.15.4 physical layer specification and operate even in the unlicensed band including 2.4 GHz, 868 MHz, and 900 MHz 

Different types of layers :

1. Physical layer: This layer consists of modulation and demodulation operation upon transmitting and receiving signal respectively.

2. MAC layer: This layer can be used for synchronizing communication. It is a reliable transmission of data by accessing different network with CSMA.

Different types of a layer in the Zigbee network

3. Network layer: This layer can be used for network set up, such as disconnect network, routing, device configuration, network set up, etc.

4.Application support sub-layer: This layer interface with the network layers for data managing services.

5. Application framework: This layer is responsible for detecting, initiating and binding other devices.

Zigbee technology

Zigbee is a wireless protocol used for wireless networking and also have connectivity. Zigbee network is the wireless language that every device used to connect to one another. It is the recently emerged technology of network communication based on the IEEE 802.15.4 standard where IEEE stands for Institute of electrical and also have electronic engineers. Zigbee is a new standard developed by the Zigbee alliance for full form of PAN personal area network, consisting of more than 270 companies and many more. Let us now check it out basic features of Zigbee network to know more details about the Zigbee network.

Feature of Zigbee

• It incorporates power saving mechanisms for all device classes
• Discovery mechanism with full application confirmation
• Pairing mechanism with full application confirmation
• Various transmission option included broadcast
• It uses a small packet compared with other technology WiFi and Bluetooth
• Low data rate
• Low battery consumption
• The maximum range of operation for a Zigbee device is 250 feet
• Easy to implement
• Low cost
• It supports up to 65000 nodes connected in a network
• Support alliance standard or manufacturer specific profiles
• Zigbee uses small packets compared with  other technology WiFi and Bluetooth
• Multiple star topology and interpersonal area network communication
• It supports up to 65000 nodes connected in a network
• Zigbee can automatically establish its network

Zigbee network consists of three different types of devices such as like:

• Router
• Zigbee coordinator and 
• End devices.

At least one ZigBee coordinators are acts as root and bridge of the network. The coordinator is responsible for handling and storing the information while transmitting and receiving operation.

Coordinator and end devices always depend on the Different types of Zigbee topology like star, tree, and mesh.

Zigbee router is internal devices while end devices have limited functionality to communicate with parent nodes. So battery power is saved.

Zigbee architecture consists of various layers where IEEE 802.15.4 is defined as two layers a physical layer and MAC layers.

Zigbee specification has two implementation options or feature sets: 1. Zigbee and 2. Zigbee PRO. Zigbee feature set is designed to support smaller networks with more than hundreds of devices in a single network. Zigbee PRO feature set is the most popular device for the choice of developer and the specification used for most alliance developed standard. This article gives some basic feature of Zigbee networks, advantages and disadvantages and application of Zigbee networks.

Different types of layers :

1. Physical layer: This layer does modulation and demodulation operation upon both side transmitting and receiving signal respectively.

2. MAC layer: This layer can be used for synchronizing communication. It is a reliable transmission of data by accessing different network with CSMA.

Different types of a layer in Zigbee network

3. Network layer: This layer can be used for network set up, such as disconnect network, routing, device configuration, network set up etc.

4. Application support sub-layer: This layer interface with the network layers for data managing services.

5. Application framework: This layer is responsible for detecting, initiating and binding other devices.

Zigbee topology:

There are different types of topology like a star, mesh, tree topology.

1. Star topology :

A star network has a central node, which is linked to all other nodes in the networks. All messages travel via the central node.

The star topology consists of a coordinator and several end devices as shown in the figure. The end device must be communicated only with the coordinator. So any packet exchange between end devices first must go through the Zigbee coordinator.

The advantages of star topology are that it is simple and packet go through at most two hopes to reach their destination.

2. Tree topology :

A tree network has a top node with a branch like structure as shown in the figure. To reach its destination, a message travels up the tree and then go down the tree.

As shown in the figure, the network terminal consists of a central node, which is a coordinator, several routers and end device.

So in this topology, the total task of the router is to extend the coverage of the network. The end nodes connected to the routers or the coordinator are referred to as children. Only the coordinator and the routers can have children like that.

The coordinator and the routers can have children. Hence only they can be parents. A special case of tree topology is called a cluster type tree topology. In it, a parent with its children is called a cluster, as shown in the figure.

One of the disadvantages of tree topology is that if two nodes are located close to each other, they can not directly communicate.

3. Mesh topology :

A mesh topology looks like a tree structure, in which some leaves are directly linked. A message can travel across the tree when a suitable route is available.

It is also called peer to peer topology. It consists of one coordinator several routers,, and end device as shown n figure. 

Following characteristics of a mesh topology

• Dead zone eliminated in this topology
• In this topology, the device can be placed close to each other so that they use less power
• Adding or removing a device is very easy in this topology
• Any source of a device can communicate with any destination in the network
• It uses a more complex routing protocol in comparison to the star topology

                              Zigbee topology

Zigbee is a wireless protocol used for wireless networking and connectivity. Zigbee is the wireless language that every device used to connect to one another. It is the recently emerged technology of network communication based on the used IEEE 802.15.4 standard where IEEE stands for Institute of electrical and also for electronic engineers. Zigbee is a new standard developed by the Zigbee alliance for used personal area network (PAN), Consisting of more than 270 companies. 

Let us now check it out the application of the Zigbee network to know more details about the Zigbee network.

Home automation :

• Heating, lighting
• Cooling, door locking mechanisms
• Home security system
• Smoke detector

Telecom application :

• Used to transmit and receive the message
• Share ring tone, images, and contacts
• Emergency services

Industrial automation :

• Personal tracking
• Livestock tracking
• Record and transmit critical data like pressure, temperature and also a vibration

Security :

• Home security
• Fire detection

Some other applications :

• Health care
• Smart energy
• Remote control for consumer electronics 
• Hotel room access
• Smart metering

Zigbee architecture

Zigbee network consists of three different types of devices following below :

• Router
• Zigbee coordinator and 
• End devices

At least one zigbee coordinators are acts as a root and bridge of the network. The coordinator are responsible for handling and storing the information while transmitting and receiving operation.

Coordinator and end devices always depends on the types of topology like star, tree and mesh.

Zigbee router are internally devices while end devices have limited functionality to communicate with parent nodes. So battery power is saved.

Zigbee architecture consists of various layes where IEEE 802.15.4 is defined as a physical layer and MAC layers.

Different types of layers :

Physical layer : This layer does modulation and demodulation operation up on transmitting and receiving signal respectively.

MAC layer : This layer can be used for synchronizing communication. It is releible transmission of data by accessing different network with CSMA.

Different types of layer in Zigbee network

Network layer : This layer can be used for network set up, such as disconnect network, routing, device configuration, network set up etc.

Application support sub layer : This layer interface with the network layers for data managing services.

Application framework : This layer is responsible for detecting, initiating and binding other device.

Zigbee topology

Zigbee is network technology. Here this article gives information about Zigbee topology to know more details about it. 

1. Star topology :

A star network has a central node, which is linked to all other nodes in the networks. All messages travel via the central node.

The star topology consists of a coordinator and several end devices as shown in the figure. In this topology, the end device communicates only with the coordinator. So any packet exchange between end devices must go through the ZigBee coordinator.

The advantages of the star topology are that it is simple and packet go through at most two hopes to reach their destination.

2. Tree topology :

A tree network has a top node with a branch like structure as shown in the figure. To reach its destination, a message travels up the tree and then down the tree.

As shown in the figure, the network terminal consists of a central node, which is a coordinator, several routers and end device.

So in this topology, the task of the router is to extend the coverage of the network. The end nodes connected to the routers or the coordinator are referred to as children. Only the coordinator and the routers can have children like that.

The coordinator and the routers can have children. Hence only they can be parents. A special case of tree topology is called as cluster tree topology. In it, a parent with its children is called a cluster, as shown in the figure.

One of disadvantages of tree topology is that if two nodes are located close to each other, they can not directly communicate.

3. Mesh topology :

A mesh topology look like a tree structure, in which some leaves are directly linked. Message can travel across the tree, when a suitable route is available.

It is also called peer to peer topology. It consist of one coordinator several routers , and end device as shown n figure. 

Following characteristics of a mesh topology

• Dead zone eliminated in this topology
• In this topology the device can be placed close to each other so that they use less power
• Adding or removing a device is very easy in this topology
• Any source device can communicate with any destination in the network
• It uses a more complex routing protocol in comparison to the star topology

Zigbee topology

Application of Zigbee networks

Zigbee is a wireless protocol used for wireless networking technology and connectivity. Zigbee is the wireless language that every device used to connect to one another. It is the recently emerged technology of network communication based on the IEEE 802.15.4 standard where IEEE stands for Institute of electrical and electronic and communication engineers. Zigbee is a new standard developed by the Zigbee alliance for personal area network ( called PAN), Consisting of more than 270 companies. 

Now let us now check it out the application of the Zigbee network to know more details about the Zigbee network.

Home automation :

• Heating, lighting
• Cooling, door locking mechanisms
• Home security system
• Smoke detector

Telecom application :

• Used to transmit and receive the message
• Share ring tone, images, and contacts
• Emergency services

Industrial automation :

• Personal tracking
• Livestock tracking
• Record and transmit critical data like pressure, temperature, and also a vibration

Security :

• Home security
• Fire detection

Some other applications :

• Health care
• Smart energy
• Remote control for consumer electronics 
• Hotel room access
• Smart metering

Advantages and disadvantages of Zigbee networks

Zigbee network technology is a wireless protocol used for wireless networking and connectivity. Zigbee is the wireless language that every device used to connect to one another. It is the recently emerged technology of network communication system based on the  IEEE 802.15.4 standard. Zigbee is a new standard developed by the Zigbee alliance for personal area network ( called PAN), Consisting of more than 270 companies. Let us now check it out advantages and disadvantages of  Zigbee network to know more details about the Zigbee network.

Advantages of Zigbee networks :

• Zigbee has a flexible network structure
• It has very long battery life
• Zigbee has a mesh network topology with low cost, multi hope data transmission and is power effective
• It is less complex than Bluetooth
• It is easy to install
• Zigbee support a large number of nodes 
• Zigbee is more reliable 
• It is a short working period result in power saving and power consumption of communication

Disadvantages of Zigbee networks :

• Zigbee disadvantages mainly include short range
• Low complexity, and low data speed
• Its high maintenance cost, lack of total solution, and slow materialization,
• Low transmission, as well as low network stability, are also some of its disadvantages that takes it a step back as compared to others
• Replacement with Zigbee compliant appliances can be costly 
• Zigbee is not secure like WiFi based secured system
• It does not have end devices available yet

Explore more information:

1. Advantages and disadvantages of WiFi
2. Advantages and disadvantages of Wimax
3. Advantages and disadvantages of Bluetooth
4. Advantages and disadvantages of GiFi
5. Advantages and disadvantages of LiFi

Features of Zigbee network

We all know that Zigbee technology is a wireless protocol used for wireless networking and connectivity. Zigbee is the wireless language technology that every device used to connect to one another. It is the recently emerged technology of network communication based on the IEEE 802.15.4 standard where the standard IEEE stands for Institute of electrical and electronic engineers. Zigbee is a new standard developed by the Zigbee alliance for PAN stands called personal area network, Consisting of more than 270 or more companies. Here this article gives the basic features of the Zigbee network to know more details about the Zigbee network.

Feature of Zigbee

• Zigbee has incorporated power saving mechanisms for all device classes
• Discovery mechanism with full application confirmation
• Pairing mechanism with full application confirmation
• Various transmission option included broadcast
• It has a small packet compared with WiFi and Bluetooth
• Low data rate
• Low battery consumption
• The maximum range of operation for a Zigbee device is  around 250 feet
• Easy to implement
• Low cost
• It supports up to around 65000 nodes connected in a network
• Support alliance standard or manufacturer specific profiles
• It has used small packets compared with WiFi and Bluetooth
• Multiple star topology and interpersonal area network communication
• Zigbee can automatically establish its network