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

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

A Network Coding Based Rate Adaptive Protocol for Wireless Mesh Network

2011 ◽  
Vol 135-136 ◽  
pp. 1140-1146
Author(s):  
Jia Chen Wang ◽  
Min Cang Fu
Keyword(s):  
Network Coding ◽  
Wireless Mesh Network ◽  
Transmission Rate ◽  
Link Quality ◽  
Mesh Network ◽  
Coding Schemes ◽  
Wireless Mesh ◽  
End To End Delay ◽  
Rate Adaptive ◽  
The Impact

In this paper, TRANC-a transmission rate adaption network coding protocol for wireless mesh network is proposed. We investigate the interaction between network coding and transmission rate adaption in wireless mesh network. Traditional network coding schemes either assume a fixed transmission rate and do not consider the impact of using diverse rates on the performance of the network, which limits the performance of the wireless networks. each node makes the routing decision based on the link quality, making full use of the transmission capacity of idle nodes in the network, which effectively reduces the communication costs between nodes, as well as the probability of packet duplication. Simulations show that TRANC can effectively improve network throughput with a lower end to end delay.

Optimization of Multicast End-to-End Delay in Multi-Radio Wireless Mesh Networks

2014 ◽  
Vol 687-691 ◽  
pp. 2975-2978
Author(s):  
Yan An Kang ◽  
Ai Ping Yan ◽  
Gui Xiang Xue
Keyword(s):  
Wireless Mesh Network ◽  
Mesh Network ◽  
Global Flow ◽  
Routing Metric ◽  
Queuing Delay ◽  
Wireless Mesh ◽  
End To End Delay ◽  
Proposed Model ◽  
End To End ◽  
Flow Interference

Multi-radio wireless mesh network (MR-WMN) is one of the key access techniques in Mobile Internet. However, current 802.11-based MR-WMN is not able to provide low multicast end-to-end delay. To address this problem, we first propose a layered and analytical model by combining overlapping channel assignment with multi-path routing strategies. The proposed model can be used as a guide on multicast design. It decoupled multicast delay into transmission delay in the MAC layer and queuing delay in the Mesh layer based on that it derived a new multicast routing metric that had low end-to-end delay. Second, we prove that finding the minimum global flow interference solution is a NP-Complete problem an<I the relationship between global flow interference and network node densities is distributed in accord with double-Pareto lognormal (dP1N) distribution. Based on these two results, the DCA algorithm is proposed in order to minimum global flow interference which can efficiently reduce the multicast transmission delay in MAC layer. Last, to avoid the best wireless link being congested, we propose the flow adaptive-based MMRA algorithm by making use of the M R-M ED routing metric and the multi-path routing design philosophy, which took local channel congestion into account and can efficiently reduce the queuing delay in Mesh layer. Simulation result and comparison of the common algorithm MCM both show that the proposed model accurately characterizes the multicast delay in multi-radio wireless mesh network and the combination of the DCA and MMRA algorithms efficiently reduce the multicast end-to-end delay.

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

2012 ◽  
pp. 277-295
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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