Performance analysis of access selection and transmit diversity in multi-access networks
conference paper
Motivated by the 'beyond 3G' vision of radio access network integration and coordinated radio resource management, a purely analytical performance assessment is presented for a single access point integrating multiple radio accesses. Principal focus is placed on the evaluation of multi-user diversity, multi-access diversity and trunking gains. Scenarios with persistent and non-persistent data flows are investigated, concentrating on throughput and transfer time performance, respectively. A number of numerical experiments are included in order to quantify the relative contribution of the distinguished aspects to the performance gain. These experiments indicate that the exploitation of multi-user diversity with a channel-aware access selection scheme attains the most significant gains, while also the trunking gain that is due to an above-proportional performance enhancement when aggregating system-specific capacities, is noted to be significant. The assignment of multiple accesses to a given flow is demonstrated to have limited potential. Copyright 2006 ACM.
Topics
Multi-access networksMulti-user diversityPerformance evaluationProportional fairRadio access selectionSchedulingStochastic analysisTransmit diversityTrunking gainsCommunication channels (information theory)Computer simulationResponse time (computer systems)Three dimensional computer graphicsThroughputUser interfacesTelecommunication networks
TNO Identifier
239608
Publisher
ACM
Source title
12th Annual International Conference on Mobile Computing and Networking, MOBICOM 2006, 24-29 September 2006, Los Angeles, CA, USA
Place of publication
New York, NY
Pages
251-261