A new improved MAC scheme: RM-MAC

Author

Zhang, Wenbin ; Yang, Xiaozong ; Wu, Shaochuan

Author_Institution

Commun. Res. Center, Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

17-19 Aug. 2011

Firstpage

822

Lastpage

826

Abstract

As a typical MAC layer salvaging scheme, MASA is applied to IEEE802.11 with constant bit rate. In Ad Hoc networks, the salvation character of this scheme improves the performance of the 802.11 MAC protocol. However, the IEEE802.11b with variable bit rate is widely used at present. Consequently, it is necessary to analyze the behavior of MASA in variable rate conditions. Based on the above idea, this paper proposes a new salvaging scheme called Relay Multi-rate MAC (RM-MAC), which is an integration of MASA and modified Receiver-Based AutoRate (RBAR). A two-dimensional markov model concerning this new scheme is established, and then simulation by NS2 is implemented. Both model analyzing and simulation results show that RM-MAC is superior to IEEE802.11 in aggregation throughput and average packet delay.

Keywords

Markov processes; access protocols; ad hoc networks; wireless LAN; IEEE 802.11 MAC protocol; IEEE802.11b; MAC layer salvaging scheme; MASA behaviour; NS2; RBAR; RM-MAC; ad hoc networks; aggregation throughput; average-packet delay; improved MAC scheme; modified receiver-based autorate; relay multirate MAC; two-dimensional Markov model; Data models; Delay; Markov processes; Mobile communication; Receivers; Relays; Throughput; Aggregation throughput; Average packet delay; IEEE802.11; MASA;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China (CHINACOM), 2011 6th International ICST Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4577-0100-9

Type

conf

DOI

10.1109/ChinaCom.2011.6158267

Filename

6158267