Title :
Service fairness in CDMA cellular slotted-Aloha packet systems
Author :
Mori, Kazuo ; Kobayashi, Takehiko ; Yamazato, Takaya ; Ogawa, Akira
Author_Institution :
YRP Key Tech. Labs., Yokosuka, Japan
fDate :
6/21/1905 12:00:00 AM
Abstract :
This paper examines spatial fairness of service in the up-link of CDMA cellular slotted-Aloha packet communication systems with site diversity. A new transmission power control scheme is proposed to reduce unfairness in packet reception at the base stations. In the proposed scheme, mobile stations determine the target received power for the open-loop power control according to the reception levels of pilot signals from the surrounding base stations. The packet reception rate and throughput performance are evaluated in fading environments with perfect and imperfect power control. Computer simulation validates the service fairness maintained for all mobile stations and the improved throughput performance
Keywords :
access protocols; cellular radio; code division multiple access; diversity reception; fading channels; multiuser channels; packet radio networks; power control; radio links; telecommunication control; telecommunication services; CDMA cellular slotted-Aloha packet systems; base stations; computer simulation; fading environments; imperfect power control; mobile stations; open-loop power control; packet reception; packet reception rate; perfect power control; pilot signal reception levels; service fairness; site diversity; target received power; throughput performance; transmission power control; unfairness reduction; up-link; Base stations; Circuits; Computer simulation; Diversity reception; Fading; Mobile communication; Mobile computing; Multiaccess communication; Power control; Throughput;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.830137
