Utility based channel assignment mechanism for multi radio mesh networks

Nezhad, Maryam Amiri; Cerdà-Alabern, Llorenç

doi:10.1145/1868497.1868509

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…Most of the CAs proposed in the literature fall into static category [4][5][6][7][8][9][10][11][12][13], where nodes tune their radios to certain channels permanently. Static CAs are easy to deploy but unsuccessful to cope with the changes in the wireless environment [4].…”

Section: Figure 1 Multi-radio Wireless Mesh Networkmentioning

confidence: 99%

“…Channel assignment mechanisms are usually evaluated via simulations due to the multiple considerations and complex scenarios required to evaluate them [7][8][9][10]13,[22][23][24][25]. However, most of the current network simulators do not support multi-radio routers nor dynamic re-configuration of the radio interface, requiring modifications into their core level to allow the evaluation of CA mechanisms [29].…”

Section: Figure 1 Multi-radio Wireless Mesh Networkmentioning

confidence: 99%

“…Although many solutions have been considered for channel assignment [3][4][5][6][7][8][9][10][11][12][13][16][17][18][19][20][21][22][23][24][43][44][45][46][47], few proposals are adaptive to the changes in the wireless environment such as the interference induced from other wireless networks [16,22,25,48]. The first interference aware CA mechanism is Breath First Search Channel Assignment (BFSCA) [16].…”

Section: Related Workmentioning

confidence: 99%

See 2 more Smart Citations

Simulation of multi-radio multi-channel 802.11-based mesh networks in ns-3

Amiri-Nezhad

Zapata

Bellalta

et al. 2014

J Wireless Com Network

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In the context of wireless network simulation, many simulators are capable of evaluating the performance of single-channel network protocols, but they need many modifications to be able to simulate multi-radio multi-channel networks. We address the problem of simulating channel assignment protocols for multi-radio wireless mesh networks in ns-3 simulator, providing the essential steps needed to simulate a channel assignment protocol. In addition, we explain the details of simulating the Semi-dynamic Interference aware Channel Assignment (SICA) protocol as an example. We use SICA as a reference to address the challenges of validating and verifying the simulation model. To validate the channel assignment model in SICA, we use mathematical validation based on Markov chains. Furthermore, we propose a novel automated test module to verify the simulation process.

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Section: Figure 1 Multi-radio Wireless Mesh Networkmentioning

confidence: 99%

Section: Figure 1 Multi-radio Wireless Mesh Networkmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Simulation of multi-radio multi-channel 802.11-based mesh networks in ns-3

Amiri-Nezhad

Zapata

Bellalta

et al. 2014

J Wireless Com Network

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Multi-Radio Multi-Channel Assignment Algorithm in Maritime Wireless Mesh Networks

Xing

Sun

et al. 2019

IEEE Access

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The recent growth in the maritime industry stemming to increase in global commerce as well as searching for hydrocarbons at offshore locations, the high data rate and cost affordable maritime communication is acquired. A mesh network is envisaged for maritime communications because of its expanded coverage, self-healing, and high-capacity. With the development of multi-radio technology, the frequency interference can be decreased sharply with proper channel assignment. The static channel assignment optimization is often applied to decrease the wireless frequency interference which is known as an NP-hard problem. In this paper, we focus on the static channel assignment issue and propose a heuristic algorithm to solve the optimization problem. The problem is addressed by assigning channels to communication links to minimize the interference from overall network. A modified particle swarm optimization (PSO) algorithm is proposed to optimize the problem, and a new merging solution is adopted to reassign channels for nodes, which violate the radio constraints. Multi-radio simulation is performed in NS-3 to validate the effectiveness of the proposed channel assignment algorithm. The results show that the algorithm is able to find an optimized assignment with fewer iterations than the previous work and improve network performance.INDEX TERMS Multi-radio multi-channel, channel assignment, wireless mesh networks, marine communication.

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A semi-dynamic, game based and interference aware channel assignment for multi-radio multi-channel wireless mesh networks

Nezhad

Cerdí-Alabern

Bellalta

et al. 2013

IJAHUC

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Channel assignment has been extensively researched for multi-radio wireless mesh networks, but it is still very challenging when it comes to its implementation. In this paper we propose a semi-dynamic and distributed channel assignment mechanism called SICA (Semidynamic Interference aware Channel Assignment) based on game theory formulation. SICA is an interference aware, distributed channel assignment which preserves the network connectivity without relying on a common channel nor central node for coordination between mesh routers. SICA applies a real time learner algorithm which assumes that nodes do not have perfect information about the network topology. To the best of our knowledge this is the first game formulation of channel assignment which takes the co-channel interference into account. We have simulated SICA and compared against other channel assignment mechanisms proposed in the literature. Simulation results show that SICA outperforms other mechanisms.

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Utility based channel assignment mechanism for multi radio mesh networks

Cited by 4 publications

References 11 publications

Simulation of multi-radio multi-channel 802.11-based mesh networks in ns-3

Simulation of multi-radio multi-channel 802.11-based mesh networks in ns-3

Multi-Radio Multi-Channel Assignment Algorithm in Maritime Wireless Mesh Networks

A semi-dynamic, game based and interference aware channel assignment for multi-radio multi-channel wireless mesh networks

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