The effect of carrier sensing mechanisms on wireless mesh network goodput

A gateway node in a WMN acts as bridge between mesh nodes and the external network in order to exchange information between the wireless mesh network operating in a disaster stricken area and remotely located rescue headquarters and government agencies. Using a single gateway, WMN creates huge congestion on the routes to the gateway, as all the data traffic may travel in the same direction using longer routes to access the gateway node, causing channel contention between nodes that operate within carrier sensing range of each other. Therefore a multiple gateway environment is crucial during WMN application in emergency and disaster recovery. This paper presents the design and implementation of a Load-Balanced Gateway Discovery routing protocol called LBGD-AODV, which provides multiple gateway support in Wireless Mesh Network. LBGD-AODV is designed as an extension to the Ad hoc On-Demand Distance Vector (AODV) routing protocol and uses a periodic gateway advertisement scheme equipped with an efficient algorithm to avoid congestion by establishing load-balanced routes to the gateway nodes for Internet traffic. The evaluation tests show that the LBGD-AODV has not compromised the efficiency of basic AODV routing and has improved the performance of the network.

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Load-Balanced Multiple Gateway Enabled Wireless Mesh Network for Applications in Emergency and Disaster Recovery

International Journal of Adaptive Resilient and Autonomic Systems ◽

10.4018/ijaras.2011100103 ◽

2011 ◽

Vol 2 (4) ◽

pp. 36-53

Author(s):

Muddesar Iqbal ◽

Xinheng Wang ◽

Hui Zhang

Keyword(s):

Routing Protocol ◽

Disaster Recovery ◽

Wireless Mesh Network ◽

Ad Hoc ◽

Mesh Network ◽

Data Traffic ◽

Gateway Node ◽

Wireless Mesh ◽

Carrier Sensing ◽

Load Balanced

A gateway node in a WMN acts as bridge between mesh nodes and the external network in order to exchange information between the wireless mesh network operating in a disaster stricken area and remotely located rescue headquarters and government agencies. Using a single gateway, WMN creates huge congestion on the routes to the gateway, as all the data traffic may travel in the same direction using longer routes to access the gateway node, causing channel contention between nodes that operate within carrier sensing range of each other. Therefore a multiple gateway environment is crucial during WMN application in emergency and disaster recovery. This paper presents the design and implementation of a Load-Balanced Gateway Discovery routing protocol called LBGD-AODV, which provides multiple gateway support in Wireless Mesh Network. LBGD-AODV is designed as an extension to the Ad hoc On-Demand Distance Vector (AODV) routing protocol and uses a periodic gateway advertisement scheme equipped with an efficient algorithm to avoid congestion by establishing load-balanced routes to the gateway nodes for Internet traffic. The evaluation tests show that the LBGD-AODV has not compromised the efficiency of basic AODV routing and has improved the performance of the network.

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Q- Learning Algorithm with Network Coding in Multi-Path Transfer Protocol for Wireless Mesh Network

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c4299.099320 ◽

2020 ◽

Vol 9 (3) ◽

pp. 153-157

Keyword(s):

Network Coding ◽

Wireless Mesh Network ◽

Learning Algorithm ◽

Mesh Network ◽

Network Efficiency ◽

Q Learning ◽

Wireless Mesh ◽

End To End Delay ◽

Carrier Sensing ◽

Transfer Protocol

In a wireless mesh network, the network coding algorithm used to improve network efficiency. In this paper, we have implemented the Q-learning algorithm with CSMA/CA as in distributed co-ordination function along with multi-path transfer protocol (MPTP). The functioning of CSMA/CA is based on physical carrier sensing. Q-learning algorithm, along with network coding, is implemented to achieve better throughput. Our proposed method has used to reduce the packet loss and to minimize the end to end delay of the network communication. Also, it will improve the possibility of receiver buffer blocking

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