A reservation limited sensing protocol in wireless networks

Random access algorithms are suitable for large numbers of users generating light, bursty, single packet traffic. However, when users generate packet “sequences” with high probability, reservation mechanisms may be employed to increase channel throughput. Hybrid access schemes containing both contention and reservation components have been previously introduced and analyzed. In this paper, we introduce hybrid schemes based on a limited-sensing random access algorithm and investigate their throughput under the heavy traffic assumption. Two protocols are implemented, differing by whether or not the number of packets per message is fixed or variable. Their performance is examined in a multicell setting, in the presence of feedback errors which arise from intercell interference when the cells´ coverage areas partially overlap