Abstract
In DS-CDMA mobile radio communications systems, transmit power control (TPC) is indispensable to regulate the variations in the received signal power produced by multipath fading. However, a practical TPC raises and lowers the mobile transmit power only at discrete time instants (the TPC rate is on the order of 1-2 kHz) and by a finite step size of the order of 1 dB. Therefore, TPC cannot completely compensate the received signal power variations and hence, the transmission performance degrades in a fast fading channel. The objective of this paper is to understand how TPC acts in a fast fading channel with antenna diversity reception and, based on this understanding, to model the TPC operation.
| Original language | English |
|---|---|
| Pages (from-to) | 769-776 |
| Number of pages | 8 |
| Journal | IEICE Transactions on Communications |
| Volume | E86-B |
| Issue number | 2 |
| Publication status | Published - 2003 Feb |
Keywords
- DS-CDMA
- Fading
- Mobile radio communications system
- Transmit power control
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering