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Control of transmit permission probability to improve service fairness in CDMA cellular packet communications

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4 Author(s)
K. Mori ; YRP Key Tech. Labs., Yokosuka, Japan ; T. Kobayashi ; T. Yamazato ; A. Ogawa

Site diversity causes unfairness in packet reception that depends on the location of the mobile stations in the up-link of CDMA cellular packet communication systems. This paper proposes an adaptive transmit permission probability control scheme that reduces this unfairness in CDMA cellular slotted-ALOHA systems with site diversity. The proposed scheme adaptively controls the transmit permission probability according to the offered load and the location of the mobile stations. Successful packet reception rate, fairness coefficient and throughput performance are evaluated in fading environments with imperfect power control. Computer simulation shows that adaptive transmit permission probability control improves fairness of service for all mobile stations and throughput performance across all channel loads compared with the conventional scheme

Published in:

Mobile Multimedia Communications, 1999. (MoMuC '99) 1999 IEEE International Workshop on

Date of Conference: