scholarly journals Ant colony optimization based energy efficiency for improving opportunistic routing in multimedia wireless mesh network

2019 ◽  
Vol 16 (3) ◽  
pp. 1371
Author(s):  
S. Harikishore ◽  
V. Sumalatha
Keyword(s):  
Energy Efficiency ◽  
Ant Colony Optimization ◽  
Network Lifetime ◽  
Mesh Networks ◽  
Opportunistic Routing ◽  
Ant Colony ◽  
Energy Utilization ◽  
Mesh Network ◽  
Transmission Distance ◽  
Wireless Mesh

<span>Opportunistic Routing (OR) is developing as a favourable prototype to diminish performance deprivation in Wireless Mesh Networks (WMNs) owing to changing channel conditions and link breakages. When a flow of data is forwarded towards their destination, intermediate forwarders can attune the information of the route carried by the nodes. However, OR does not solve these problems such as routing efficiency and Energy Consumption. If the necessary energy is not presented, the packet is rejected and the delay occurs in the network. To overcome these problems, an Ant Colony Optimization based Energy Efficiency for improving opportunistic routing in Multimedia WMN (ACO-EE) is proposed. In this scheme, we develop the optimal energy strategy based on optimal transmission distance and remaining energy computation is saving node energy and enhancing the network lifetime. The ant colony optimization based route formation is to improve both the energy efficiency and opportunistic routing efficiency in WMN.Simulation results show that ACE-EE can effectively reduce the energy utilization of nodes and extend the network lifetime.</span>

Opportunistic Frame Forwarding in Wireless Mesh Networks

2015 ◽  
Vol 764-765 ◽  
pp. 941-945
Author(s):  
Shih Tsung Liang ◽  
Bo Yi Song ◽  
Yu Yao Su
Keyword(s):  
Wireless Mesh Networks ◽  
Mesh Networks ◽  
Opportunistic Routing ◽  
Wireless Channel ◽  
Mesh Network ◽  
Delivery Ratio ◽  
Delivery Probability ◽  
Wireless Mesh ◽  
Deterministic Routing ◽  
The One

Opportunistic routing has been shown to achieve the high throughput of the wireless mesh network with lossy channels. Different from deterministic routing mechanisms in which a frame is <em>transmitted</em> and forwarded along with a fixed and predetermined <em>path</em>, the opportunistic routing technique allows multiple nodes hearing the frame to form the forwarder set containing promising candidates for the frame forwarding. Existing opportunistic routing protocols typically choose among forwarding candidates based on the decision made from the transmitter disregarding the current loads in candidates. In this paper, the opportunistic frame forwarding mechanism with considering backlog of frames among forwarders is proposed and analyzed. Specifically, in addition to take into account the delivery probability, our proposal restricts members of the forwarder set for a given transmitter to those wireless nodes whose transmission range covers one another and makes the true forwarder picked from the forward set of a given transmitting frame being the one who gains access to wireless channel for the frame before others do. Therefore, the efficient and load-balanced opportunistic routing for wireless mesh networks can be achieved. Analytic results show that the proposed method compared to the deterministic routing methodology can achieve the high frame delivery ratio.

Energy Efficient Cross Layer STDMA Design in Solar-Powered Wireless Mesh Network

2013 ◽  
Vol 321-324 ◽  
pp. 2849-2854
Author(s):  
Chang Song Xiang ◽  
Geng Li ◽  
Qi Xu Li ◽  
Jin Jan Zhao
Keyword(s):  
Energy Efficiency ◽  
Mesh Networks ◽  
Solar Panel ◽  
Mesh Network ◽  
Cross Layer ◽  
Frame Size ◽  
Improve Energy Efficiency ◽  
Wireless Mesh ◽  
Solar Powered ◽  
Time Division

Energy efficiency is a major concern for mesh nodes with limited power supply. So STDMA(spatial time division multiple access) is applied to reduce node’s power consumption in mesh networks. However, the energy cost was still high for solar panel applying with STDMA, due to the fixed slots and numerous start times of nodes. A VF-STDMA(variable frame in STDMA) is proposed based on STDMA protocol. The VF-STDMA dynamically changes the frame size and assigns timeslots to each link according to the network data flows. The start times are reduced by recombining slots. Finally, the optimum routing is obtained through a cross-layer mechanism covering physical layer, MAC layer and network layer. The results show that the algorithms improve energy efficiency as well as decrease energy consumption of solar panel.

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