Transmitter power control for co-channel interference management in cellular radio systems
1993 (English)Conference paper (Refereed)
Transmitter power control is a necessity to combat "near-far" problems in radio systems using receivers with limited "dynamic range" (such as conventional DSCDMA systems). Transmitter power control, however, can also be used to control cochannel interference, i.e. interference from other users using the same channel (code or time slot). For this purpose, it has been shown that the optimum transmitter power configuration is found by solving an eigenvalue problem. The paper reviews some recent results in this area. The basic models as well as the concepts of achievable C/I, up/down-link equivalence and C/Ibalancing are introduced. Both the interference limited (noise-less) case as well as models including thermal noise are treated. Results show that substantial improvements in system capacity can be achieved, particulary in conjunction with Dynamic Channel Allocation. The optimum power control schemes are shown to be robust against implementational short comings.
Place, publisher, year, edition, pages
Kluwer , 1993.
Computer and Information Science
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-29273OAI: oai:DiVA.org:kth-29273DiVA: diva2:393523
4th WINLAB Workshop on Third Generation Wireless Networks
QC 201111082011-01-312011-01-312011-11-18Bibliographically approved