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Titolo:
A FRAMEWORK FOR UPLINK POWER-CONTROL IN CELLULAR RADIO SYSTEMS
Autore:
YATES RD;
Indirizzi:
RUTGERS STATE UNIV,DEPT ELECT & COMP ENGN,POB 909 PISCATAWAY NJ 08855 RUTGERS STATE UNIV,WIRELESS INFORMAT NETWORKS LAB PISCATAWAY NJ 08855
Titolo Testata:
IEEE journal on selected areas in communications
fascicolo: 7, volume: 13, anno: 1995,
pagine: 1341 - 1347
SICI:
0733-8716(1995)13:7<1341:AFFUPI>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
CDMA SYSTEM; CAPACITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
R.D. Yates, "A FRAMEWORK FOR UPLINK POWER-CONTROL IN CELLULAR RADIO SYSTEMS", IEEE journal on selected areas in communications, 13(7), 1995, pp. 1341-1347

Abstract

In cellular wireless communication systems, transmitted power is regulated to provide each user an acceptable connection by limiting the interference caused by other users, Several models have been considered including: (1) fixed base station assignment where the assignment of users to base stations is fixed, (2) minimum power assignment where a user is iteratively assigned to the base station at which its signal tointerference ratio is highest, and (3) diversity reception where a user's signal is combined from several or perhaps all base stations. Forthe above models, the uplink power control problem can be reduced to finding a vector p of users' transmitter powers satisfying p greater than or equal to I(p) where the jth constraint p(j) greater than or equal to I-j(p) describes the interference that user j must overcome to achieve an acceptable connection. This work unifies results found for these systems by identifying common properties of the interference constraints, It is also shown that systems in which transmitter powers aresubject to maximum power limitations share these common properties, These properties permit a general proof of the synchronous and totally asynchronous convergence of the iteration p(t + 1) I(p(t)) to a uniquefixed point at which total transmitted power is minimized.

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Documento generato il 13/07/20 alle ore 04:43:58