Distributed code assignments for CDMA Packet Radio Network
IEEE/ACM Transactions on Networking (TON)
Code assignment for hidden terminal interference avoidance in multihop packet radio networks
IEEE/ACM Transactions on Networking (TON)
Effect of Hidden Terminals on the Performance of IEEE 802.11 MAC Protocol
LCN '98 Proceedings of the 23rd Annual IEEE Conference on Local Computer Networks
Wireless LAN: Study of Hidden-Terminal Effect and Multimedia Support
IC3N '98 Proceedings of the International Conference on Computer Communications and Networks
Journal of Network and Computer Applications
A Learning Automata-Based Cognitive Radio for Clustered Wireless Ad-Hoc Networks
Journal of Network and Systems Management
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A good channel assignment scheme in a multihop ad hoc network should not only guarantee successful data transmissions without collisions, but also enhance the channel spatial reuse to maximize the system throughput. It becomes very inefficient to use fixed channel assignment when the network size grows. Therefore, spatial reuse of channels become more important in a large multihop ad hoc network. In this paper, we consider an ad hoc network with an overlaid CDMA/TDMA structure. We divide each code into time slots to form the channels. A dynamic channel assignment (DCA) strategy called Hybrid-DCA is proposed in a clustered ad hoc network. This DCA strategy is designed to make the best use of available channels by taking advantage of the spatial reuse concept. In Hybrid-DCA, the increase in spatial reuse is achieved by adding certain control overhead. We show that the bandwidth saving due to channel spatial reuse is higher than the additional bandwidth spent on the control overhead.