Title :
Congestion Based Opportunistic Packet Scheduling Algorithm with Variable Size Packets Support in Ad Hoc Networks
Author :
Xia, Hailun ; Zeng, Zhimin
Author_Institution :
Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In wireless multi-hop Ad hoc networks, contending existing at MAC layer could easily results in congestion, and the first-in-first-out queue within the nodes could make the head of the queue blocked, which affects the transmitting of the following packets. In this paper, we present a variable packet size supporting and congestion-based opportunistic packet scheduling (VS-CBOS) algorithm, in which the sender sends multicast RTS frame targeted to several next-hop receivers, the receiver will reply with priority-based CTS by the probability according to its queue congestion level, and reservation subheader is added to DATA frame to support variable packet size. The performance analysis and simulation results show that VS-CBOS can remarkably increase the signaling handshake success ratio, the network end-to-end saturation throughput and the fairness among traffic flows.
Keywords :
ad hoc networks; packet reservation multiple access; probability; queueing theory; telecommunication congestion control; MAC layer; VS-CBOS; ad hoc networks; first-in-first-out queue; packet scheduling algorithm; probability; queue congestion level; variable packet size; Ad hoc networks; IEEE 802.11 Standards; Media Access Protocol; Receivers; Scheduling algorithm; Spread spectrum communication; Throughput;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5601171