Title :
A new coding scheme for packets in CDMA-based wireless ad hoc networks
Author :
Derong Liu ; Ying Cai ; Guofang Tu
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Chicago, IL, USA
Abstract :
We propose a novel packet coding scheme, transceiver packet coding scheme for DS-CDMA ad hoc networks. The design facilitates collision resolution by embedding the address information of both the transmitter and receiver in the coding scheme so that the receiver can identify the packet addressing to it without actually decoding the information symbol bits. In addition, the present scheme also avoids transmitter retransmissions and receivers wasting time in receiving a packet to completion if the packet is not addressed to it which causes additional battery energy consumption. A bank of matched filters is used to identify intended receivers, although any multiuser detection algorithm can easily be applied. The performance of the proposed coding scheme is studied by investigating its rate of missing receiver detection.
Keywords :
ad hoc networks; code division multiple access; encoding; matched filters; multiuser detection; packet switching; telecommunication congestion control; CDMA-based wireless ad hoc networks; DS-CDMA ad hoc networks; battery energy consumption; collision resolution; embedded address information; information symbol bits decoding; intended receivers; matched filter bank; missing receiver detection rate; multiuser detection algorithm; packet addressing; receiver address information; transceiver packet coding scheme; transmitter address information; transmitter retransmissions; Ad hoc networks; Batteries; Decoding; Energy consumption; Matched filters; Mobile ad hoc networks; Multiaccess communication; Multiuser detection; Transceivers; Transmitters;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1345969
