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In wireless multihop networks, route selection plays an important role in network performance in terms of throughput capacity, as well as, energy efficiency. In general, the route selection strategy should distribute the traffic throughout the network, in order to avoid congestion. This strategy also has the side-effect of distributing the energy consumption among all nodes, so that the energy starvation...
In future tactical networks, gateway nodes will have an important role in connecting different military communications platforms together to form a consolidated network. To increase capacity for upstream/downstream traffic as well as resiliency, more than one gateway should be deployed. In this context, performing gateway load balancing is vital in order to take full advantage of the resources available...
In this paper, we study the fairness problem for downlink traffic in multi-hop wireless backhaul networks with selfish nodes, including Transit Access Points (TAPs) and the gateway. Unlike the transmission of uplink traffic in which transit packets are dropped at intermediate TAPs, almost all downlink link traffic is dropped at the gateway. Therefore, we design an incentive-based mechanism where the...
In a wireless mesh network, the traffic is aggregated at mesh router and most of them forwarded towards the Internet through GW (Internet gateway). Thus easily leads to a bottleneck for network performance at GW. Aimed to this problem ,we firstly treated the GW and mesh router as the alike node equivalently. Then used the logarithm-normal distribution model of shadow affect in wireless communication...
The design/planning of WMNs is a key phase before any deployment. Few proposals can be found in the open literature that deals with the design problem; however, they do not take into account all the parameters that have an impact on the outcome of the design and they assume the existence of a physical topology where the location and the characteristics of nodes (e.g., number of channels, number of...
Wireless Mesh Networks (WMNs) provide a cost-effective way of deploying a network and providing broadband Internet access. In WMNs a subset of nodes called gateways provide connectivity to the wired infrastructure (typically the Internet). Because traffic volume of WMNs is expected to be high, and due to limited wireless link capacity, gateways are likely to become a potential bottleneck. In this...
In this paper, we present a centralized quasi-static channel assignment for multi-radio WMNs (wireless mesh networks) to provide high-throughput paths. We probe data packets at each wireless access point and estimate the traffic load for each network link using a new load estimation algorithm. So the channel assignment can intelligently assigns channels with the objective of maximizing the aggregate...
In wireless mesh networks (WMNs), the achievable throughput of a mesh client to a gateway (GW) is limited by the minimum link capacity of the intermediate nodes. In instances when the intermediate nodes experience congestion due to large relay traffic, link failure etc., this throughput may drop below an acceptable level. Since the mesh topology implies multi-path routing capability, it is possible...
Wireless mesh networks will play an important role in the next-generation wireless communication systems as it can provide wide coverage and scalable broadband Internet access services. However, congestion in such networks may lead to throughput degradation, packet loss and longer transmission delay. Therefore, routing and traffic forwarding schemes which are aware of the congestion status of a wireless...
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