This paper examines the use of intelligently deployed fixed relays to improve the performance of an UTRA-TDD 3G system. In this study, the benefits of intelligent relaying in the form of enhanced capacity and/or coverage and reduced RF emissions relative to a traditional cellular network are quantified. Simulations are carried out in a microcellular environment using propagation data from a site-specific model and an optimisation algorithm to determine the locations of base stations (BSs) and relay nodes in the system. A system level simulation of an UTRA-TDD system is used to quantify the benefits of the relayed over the non-relayed system. Results show significant improvements in capacity, spectrum efficiency and reductions in mean terminal transmit power in the relayed system over conventional cellular BS-only operation. The effects of different code allocation strategies for the relay nodes are also investigated, revealing that benefits in relaying would only be realised if code re-use between the BSs and relay nodes is enabled or if relay nodes are allocated their own pool of spreading codes.
|Translated title of the contribution||The use of intelligently deployed fixed relays to improve the performance of a UTRA-TDD system|
|Pages (from-to)||1890 - 1894|
|Number of pages||4|
|Journal||IEEE 58th Vehicular Technology Conference, 2003 (VTC 2003-Fall)|
|Publication status||Published - Oct 2003|
|Event||58th Vehicular Technology Conference 2003 (VTC 2003-Fall) - Orlando, United States|
Duration: 1 Oct 2003 → …
Bibliographical notePublisher: Institute of Electrical and Electronics Engineers (IEEE)
Name and Venue of Conference: Vehicular Technology Conference 2003 (VTC 2003-Fall)
Rose publication type: Conference contribution
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- microcellular radio
- UTRA-TDD 3G system