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Capacity Enhancement Using Ad Hoc Pico-Cells and TDD Underlay

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Original languageUndefined/Unknown
Title of host publicationProc. of the 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Number of pages5
Publication statusPublished - 1 Sep 2006


This paper introduces a new technique for efficiently incorporating multihop communications in a wideband code division multiple access (WCDMA) system with a clustered user distribution. For each cluster of users a mobile station (MS) is selected as a gateway to act as a relay between the other MSs and the base station (BS). The under-used resources from the FDD (frequency division duplex) uplink band are utilized for communication within the cluster (TDD underlay). This model is simulated for a number of scenarios and scheduling algorithms. It is demonstrated that the proposed enhancements lead to an improvement in the spectral efficiency of the system of up to 50%

ID: 1849005