On the uplink capacity and coverage of relay-assisted UMTS cellular network with multiuser detection

Date

2012

Authors

Shi, Zhenning
Zhao, Ming
Wang, He (Jackson)
Reed, Mark

Journal Title

Journal ISSN

Volume Title

Publisher

Conference Organising Committee

Abstract

Capacity and Coverage are the two major concerns for the wireless operators to deploy cellular networks. This paper investigates the uplink capacity and coverage of relay-assisted UMTS network when multiuser detection techniques are employed at both macrocell base station (BS) and relay station (RS). A hierarchical geometric system model is used where the fixed relay stations are deployed within the macrocell. We are particularly interested in the cases where macro BSs and RSs have different capabilities in mitigating intracell and intercell interferences. Simulation results show that the capacity can be tripled and the cell range can be extended when MUD can be employed at base stations and relay stations. Furthermore, we studied the practical scenario where the users in the relay region are partially served by the relay station. This case is meaningful when there are not enough relay resources or users are restricted due to limited handover capability. We then proposed a partial relay system to enhance the cell range while maintaining a reasonable cell load.

Description

Keywords

Keywords: Cellular network; Fixed relay station; Handover; Intercell interference; Macro cells; Relay stations; Relay system; System models; UMTS networks; Uplink capacity; Wireless operators; Antenna radiation; Base stations; Telecommunication repeaters; Wireless

Citation

Source

IEEE Wireless Communications and Networking Conference, WCNC

Type

Conference paper

Book Title

Entity type

Access Statement

License Rights

DOI

10.1109/WCNC.2012.6214314

Restricted until

2037-12-31