A distributed code assignment algorithm with high code reusability for CDMA-Based ad hoc networks

Authors:
Chang Wu Yu;Tung-Kuang Wu;Rei-Heng Cheng;Chia Hu Wu
Affiliations:
Department of Computer Science and Information Engineering, Chung Hua University, Hsin-Chu, Taiwan, R.O.C;Department of Information Management, National Changhua University of Education, Chang-Hua, Taiwan, R.O.C;Department of Information Management, Hsuan Chuang University, Hsin-Chu, Taiwan, R.O.C.;Department of Computer Science and Information Engineering, Chung Hua University, Hsin-Chu, Taiwan, R.O.C
Venue:
WASA'06 Proceedings of the First international conference on Wireless Algorithms, Systems, and Applications
Year:
2006

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Abstract

We propose a dynamic and distributed CDMA code assignment protocol for ad hoc networks. By combining the RTS/CTS dialogue, modified busy tone signaling and power control Tmechanisms with Tour specially designed CDMA code selection rules, our protocol can not only save precious battery energy of mobile nodes, but also increase CDAM code reusability. Our simulation indicates that the proposed protocol performs better than the static code assignment method and the on-demand code assignment method (with/without using power control) in terms of successful transmission rate, code reusability and number of successful code assignment.