An end-to-end channel allocation scheme for a wireless mesh network

• Published in: International journal of communication systems Vol. 27; no. 12; pp. 4407 - 4429
• Main Authors: Tsao, Shiao-Li, Su, Jiun-Jang, Huang, Kuei-Li, Shih, Yung-Chien, Tseng, Chien-Chao
• Format: Journal Article
• Language: English
• Published: Chichester Blackwell Publishing Ltd 01.12.2014; Wiley Subscription Services, Inc
• Subjects: Allocations; channel allocation; Channels; co-channel interference; Finite element method; Interference; multi-radio multi-channel; Networks; Simulation; Transmission; Wireless communication; wireless mesh network
• ISSN: 1074-5351; 1099-1131
• DOI: 10.1002/dac.2622

SUMMARY Co‐channel interference seriously influences the throughput of a wireless mesh network. This study proposes an end‐to‐end channel allocation scheme (EECAS) that extends the radio‐frequency‐slot method to minimize co‐channel interference. The EECAS first separates the transmission and reception of packets into two channels. This scheme can then classify the state of each radio‐frequency‐slot as transmitting, receiving, interfered, free, or parity. A node that initiates a communication session with a quality of service requirement can propagate a channel allocation request along the communication path to the destination. By checking the channel state, the EECAS can determine feasible radio‐frequency‐slot allocations for the end‐to‐end path. The simulation results in this study demonstrate that the proposed approach performs well in intra‐mesh and inter‐mesh communications, and it outperforms previous channel allocation schemes in end‐to‐end throughput. Copyright © 2013 John Wiley & Sons, Ltd. This study proposes an end‐to‐end channel allocation scheme that a node can initiate a communication session with a quality of service requirement and propagate a channel allocation request along the communication path to the destination. By checking the channel state, the end‐to‐end channel allocation scheme can determine feasible radio‐frequency‐slot allocations for the end‐to‐end path. The simulation results demonstrate that the proposed approach performs well in intra‐mesh and inter‐mesh communications.