Recent Trends in Channel Assignment Techniques in Wireless Mesh Networks

2020 ◽  
pp. 155-176
Author(s):  
D. Jasmine David ◽  
Jegathesan V. ◽  
T. Jemima Jebaseeli ◽  
Anand Babu Ambrose ◽  
Justin David D.
Keyword(s):  
Wireless Mesh Networks ◽  
Channel Assignment ◽  
Mesh Networks ◽  
Average Energy ◽  
Network Capacity ◽  
Residual Energy ◽  
Wireless Channel ◽  
Wireless Mesh ◽  
Single Radio ◽  
Average Energy Consumption

Wireless mesh networks have numerous advantages in terms of connectivity as well as reliability. Traditionally, the nodes in wireless mesh networks are equipped with a single radio, but the limitations are lower throughput and limited use of the available wireless channel. To overcome this, the recent advances in wireless mesh networks are based on a multi-channel multi-radio approach. Channel assignment is a technique that selects the best channel for a node or to the entire network just to increase the network capacity. To maximize the throughput and the capacity of the network, multiple channels with multiple radios were introduced in these networks. In this work, algorithms are developed to improve throughput, minimize delay, reduce average energy consumption, and increase the residual energy for multi-radio multi-channel wireless mesh networks.

scholarly journals Joint Channel Assignment and Routing in Multiradio Multichannel Wireless Mesh Networks: Design Considerations and Approaches

2016 ◽  
Vol 2016 ◽  
pp. 1-24 ◽  
Author(s):  
Omar M. Zakaria ◽  
Aisha-Hassan A. Hashim ◽  
Wan H. Hassan ◽  
Othman O. Khalifa ◽  
M. Azram ◽  
...  
Keyword(s):  
Wireless Mesh Networks ◽  
Channel Assignment ◽  
Mesh Networks ◽  
Network Capacity ◽  
Mesh Network ◽  
Future Research ◽  
Wireless Mesh ◽  
Traffic Distribution ◽  
Future Research Directions ◽  
Joint Channel

Multiradio wireless mesh network is a promising architecture that improves the network capacity by exploiting multiple radio channels concurrently. Channel assignment and routing are underlying challenges in multiradio architectures since both determine the traffic distribution over links and channels. The interdependency between channel assignments and routing promotes toward the joint solutions for efficient configurations. This paper presents an in-depth review of the joint approaches of channel assignment and routing in multiradio wireless mesh networks. First, the key design issues, modeling, and approaches are identified and discussed. Second, existing algorithms for joint channel assignment and routing are presented and classified based on the channel assignment types. Furthermore, the set of reconfiguration algorithms to adapt the network traffic dynamics is also discussed. Finally, the paper presents some multiradio practical implementations and test-beds and points out the future research directions.

scholarly journals Utilization and Balance in Channel Assignment for Rural Wireless Mesh Networks

2018 ◽  
Vol 22 (6) ◽  
pp. 800-808
Author(s):  
Chang Fang ◽  
Zhifang Feng ◽  
Chao Zuo ◽  
◽  
◽  
...  
Keyword(s):  
Wireless Mesh Networks ◽  
Rural Areas ◽  
Channel Assignment ◽  
Mesh Networks ◽  
Interconnection Network ◽  
Cartesian Product ◽  
Network Capacity ◽  
Directional Antennas ◽  
Wireless Mesh ◽  
Balanced Allocation

Wireless mesh networks with directional antennas are expected to be a new promising technology and an economic approach for providing wireless broadband services in rural areas. In these networks, the effective use of multiple non-overlapping channels can significantly enhance the network capacity by allowing more concurrent transmissions. However, the performances of wireless mesh networks are severely degraded by interference between links with overlapping channels in nearby areas. In this paper, we address the issue of joint utilization and balance in channel assignment for rural wireless mesh networks. We design a new channel assignment framework with the goal of optimizing the channel resource utilization across the entire network while taking balanced allocation into account. This balanced channel assignment allows for the cost-effective reuse of channels without a consequent loss of quality in the rural wireless mesh networks. We also evaluate the proposed framework on some Cartesian product graphs that are popular interconnection network topologies. The framework guarantees that these topologies require a small number of channels for balanced allocation.

A Maximum Concurrent Network Flow Based Channel Assignment Algorithm for Wireless Mesh Networks

2013 ◽  
Vol 427-429 ◽  
pp. 2212-2216
Author(s):  
Lei Zhang ◽  
Xue Hui Wang
Keyword(s):  
Wireless Mesh Networks ◽  
Channel Assignment ◽  
Network Flow ◽  
Mesh Networks ◽  
Network Capacity ◽  
Performance Simulation ◽  
Wireless Mesh ◽  
Assignment Algorithm ◽  
Flow Algorithm ◽  
Priority Order

We proposed a maximum concurrent network flow based channel assignment algorithm (MCFCA) for wireless networks. In the MCFCA algorithm, we first use the maximum concurrent network flow algorithm to compute the maximum network capacity, then we assign each link a priority according to its link throughput, finally the channel is assigned to minimize the interference between neighbor nodes in the priority order. Performance simulation shows its effectiveness in channel assignment.

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