Abstract
Without transmit power control (TPC) and Rake combining, the uplink capacity of a direct sequence code division multiple access (DS-CDMA) packet mobile communication system significantly degrades due to the near-far problem and multipath fading. In this letter, assuming a single cell system with an interference-limited channel, the impact of the joint use of Rake combining and TPC on the uplink capacity is evaluated by computer simulation. Slow TPC is found to give a link capacity larger than fast TPC. This is because, with slow TPC, the received signal power variations due to fading remain intact and this results in a larger capture effect.
| Original language | English |
|---|---|
| Pages (from-to) | 2203-2206 |
| Number of pages | 4 |
| Journal | IEICE Transactions on Communications |
| Volume | E86-B |
| Issue number | 7 |
| Publication status | Published - 2003 Jul |
Keywords
- Capture effect
- DS-CDMA
- Link capacity
- Packet communication
- Rake combining
- Transmit power control
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering