Channel assignment for 802.11p-based multi-radio multi-channel networks considering beacon message dissemination using Nash bargaining solution
802.11p 기반 다중 라디오 다중채널 네트워크 환경에서 안전 메시지 전송을 위한 내쉬 협상 해법을 이용한 채널할당

Yong-Ho Kwon, Byung-Ho Rhee
2014 Journal of Internet Computing and services  
For the safety messages in IEEE 802.11p vehicles network environment(WAVE), strict periodic beacon broadcasting requires status advertisement to assist the driver for safety. WAVE standards apply multiple radios and multiple channels to provide open public road safety services and improve the comfort and efficiency of driving. Although WAVE standards have been proposed multi-channel multi-radio, the standards neither consider the WAVE multi-radio environment nor its effect on the beacon
more » ... the beacon broadcasting. Most of beacon broadcasting is designed to be delivered on only one physical device and one control channel by the WAVE standard. also conflict-free channel assignment of the fewest channels to a given set of radio nodes without causing collision is NP-hard, even with the knowledge of the network topology and all nodes have the same transmission radio. Based on the latest standard IEEE 802.11p and IEEE 1609.4, this paper proposes an interference aware-based channel assignment algorithm with Nash bargaining solution that minimizes interference and increases throughput with wireless mesh network, which is deigned for multi-radio multi-cahnnel structure of WAVE. The proposed algorithm is validated against numerical simulation results and results show that our proposed algorithm is improvements on 8 channels with 3 radios compared to Tabu and random channel allocation algorithm. ☞ keyword : IEEE 802.11p, Channel assignment, Multi-channel Vehicular Environment) [1]-[3]로 각 차량의 위치, 속도, 이 동 방향을 포함하는 메시지를 주기적으로 전송하여 차량 안전주행을 위한 서비스를 제공하게 된다. WAVE에서는 주파수 대역인 5.8-5.92GHz의 DSRC (Dedicated Short Range Communication)를 이용해서 CCH (Control Channel) 과 SCH (Service Channel)을 이용해서 차량 안전 메시지 (beacon)를 전달하여 교통안전을 위한 주기적인 전송 (periodic) 또는 사건 발생(event-driven)에 대해 차량 간 또 는 외부 간 통신에 차량 정보를 서로 공유하게 된다[4]. 차량 안전 메시지는 차량 운전자들의 안전에 직결되는 ISSN 1598-0170 (Print)
doi:10.7472/jksii.2014.15.3.63 fatcat:exvrnmg2qnh7vnj2sgotgsqg3e