A Hop by Hop Rate Control Based QoS Management for Real Time Traffic in Wireless Sensor Networks
Wireless Sensor Network typically assimilates various real time applications that must meet some QoS requirements (e.g.delay,jitter,throughput,packet loss) under severe resource limitations.Hence,quality-of-service (QoS) management in Wireless Sensor Network is an important issue yet to be investigated.Due to the high data rate and burst traffic for real time applications,occurrence of congestion is very common.Ensuring the QoS requirements under congested scenario is quite challenging.As an attempt to this direction,in this paper we propose a hop-by-hop dynamic rate control algorithm which controls the congestion as well as ensures that the real time traffic will meet the soft QoS requirements.We have introduced per-hop deadline miss ratio as the congestion indication metric and performed the rate control when this ratio goes above to a certain level.Thus by per-hop rate adjustment,soft QoS is being met locally which in turns meets the end-to-end soft QoS.Finally,simulation has demonstrated the effectiveness of our approach.
Congestion Soft QoS Per-hop deadline miss ratio Real time traffic.
Muhammad Mostafa Monowar Md.Obaidur Rahman Byung Goo Choi Choong Seon Hong
Networking Lab,Department of Computer Engineering,Kyung Hee University 1 Seocheon,Giheung,Yongin,Gyeonggi,449-701 South Korea
国际会议
11th Asia-Pacific Network Operations and Management Symposium(APNOMS 2008)(第十一届亚太网络运行和管理国际研讨会)
北京
英文
177-186
2008-10-22（万方平台首次上网日期，不代表论文的发表时间）