Title :
Proportional Delay Differentiation in Multi-hop Wireless Networks
Author :
Jung, Hyunduk ; Yeon, Hun-Je ; Lee, Jaiyong
Author_Institution :
Yonsei Univ., Seoul
Abstract :
In this paper, we propose MWTP (Multi-hop Waiting Time Priority) scheduler to guarantee proportional delay differentiation in a multi-hop wireless network with contention- based MAC protocol. The existing single-hop delay differentiation schedulers can not differentiate the contention delay suffered at multi-hop links, and whole delay differentiation accuracy is destroyed in the multi-hop wireless communications. MWTP marks packets with departing time at the upstream node to decide scheduling order at the downstream node. The marked departing time becomes a reference point of waiting time in the scheduling process. Analysis and simulation results support that MWTP guarantees more accurate delay differentiation than existing schedulers.
Keywords :
access protocols; multi-access systems; radio networks; radiocommunication; MAC protocol; multi-hop waiting time priority scheduler; multihop wireless communications; multihop wireless networks; proportional delay differentiation; Analytical models; Delay effects; Media Access Protocol; Spread spectrum communication; Telecommunication traffic; Throughput; Traffic control; Wireless application protocol; Wireless communication; Wireless networks;
Conference_Titel :
Information Networking, 2008. ICOIN 2008. International Conference on
Conference_Location :
Busan
Print_ISBN :
978-89-960761-1-7
Electronic_ISBN :
1976-7684
DOI :
10.1109/ICOIN.2008.4472756
