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Forward‐link analysis of a two‐tier CDMA system with imperfect power control
Author(s) -
Wu JungShyr,
Hwang BorJiunn
Publication year - 2002
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.556
Subject(s) - microcell , macrocell , computer science , power control , interference (communication) , code division multiple access , computer network , power (physics) , telecommunications , outage probability , w cdma , signal to interference ratio , base station , fading , channel (broadcasting) , physics , quantum mechanics
Power control is an effective technique to reduce cochannel interference and increase capacity for cellular radio systems. The purpose of forward‐link power control in a CDMA system is to reduce the amount of interference in neighbouring cells by reducing the total amount of power transmitted. In an underlaying two‐tier system, microcell's capacity is limited by the forward link due to the interference from macrocell's basestation. Therefore, forward‐link power control is required to enhance system capacity and reduce outage probability. In this paper, we study the effect of imperfect forward‐link power control due to the limitation of power transmitted by basestation. Performance measures including capacity, outage probability and service hole area are analysed. Copyright © 2002 John Wiley & Sons, Ltd.