Title :
A MAC Method with Joint Detection for Ad Hoc Networks
Author :
Li, Cuiran ; Xie, Jianli ; Li, Chengshu
Author_Institution :
Modern Commun. Res. Inst., Beijing Jiaotong Univ.
Abstract :
In ad hoc networks, the hidden and exposed terminal problems can severely reduce the system throughput in MAC layer. To address these problems, a channel access method exploiting joint detection of overlapping packets is proposed by Kota in P. Kota and C. Schlegel, (2003). In this paper, we propose an improvement on the method, which uses CSMA/CD medium access protocol for the RTS/CTS control packets and transmitter-based code assignment for spreading the data packets. The performance of the proposed channel access method has been investigated by analysis and computer simulations in comparison with Kota´s and Nagaraj´s scheme proposed in P. Kota and C. Schlegel, (2003) and S. Nagaraj and C. Schlegel, (2004). The results show that our proposed channel access method gives a significant improvement in system throughput
Keywords :
ad hoc networks; carrier sense multiple access; telecommunication channels; telecommunication control; CSMA-CD medium access protocol; MAC method; RTS-CTS control packets; ad hoc networks; channel access method; joint detection; terminal problems; transmitter-based code assignment; Access protocols; Ad hoc networks; Computer simulation; Data communication; Electronic mail; Media Access Protocol; Multiaccess communication; Performance analysis; Throughput; Transmitters;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.346054
