Estimating the QoS Enhancement using Power Control in EGPRS

Tarcisio F. Maciel, Raimundo A. O. Neto, Waltemar M. de Sousa Jr., Francisco R. P. Cavalcanti, Yuri C. B. Silva

DOI: 10.14209/its.2002.1016

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"Second-generation (2G) systems popularized wireless telephony services. Third-generation (3G) systems are expected to enhance 2G systems with high data rates and multimedia capabilities. In this context, EGPRS, the packet data service of the GSM/EDGE Radio Access Network, becomes even more important, due to its 2G compatibility and its capability to achieve high packet data rates (above 384 Kbps) using 8-PSK modulation and a sophisticated Link Quality Control scheme. In order to satisfy the increasing demand for wireless services and to improve system capacity, many techniques, such as power control, smart antennas, dynamic channel allocation, and traffic scheduling, were proposed in the literature. In this work, we examine two different power control algorithms applied within the EGPRS context. For each algorithm, several simulations were performed, and the obtained results include SINR and throughput distributions, as well as QoS gains in terms of 10th percentile throughput values. Uplink State Flag (USF) reliable reception and its impact on power control performance is also inspected."

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