Abstract
This paper addresses the issues on design of innovative interference-free CDMA technologies whose performance will be limited by noise only. Firstly, technical limitations associated with interference-limited properties of traditional CDMA systems are revisited. Next, it will be demonstrated that it is possible to eliminate both multiple access interference (MAI) and multipath interference (MI) in a CDMA system using perfectly orthogonal complementary codes. A novel CDMA system architecture, namely DS/CC-CDMA, with an inherent immunity against MAI and MI is proposed, enabling a truly noise-limited performance. The proposed scheme can offer an isotropic MAI-free and MI-free operation in both synchronous down-link and asynchronous up-link channels as well as a very low implementation complexity. The introduction of the DS/CC-CDMA architecture gives us a great hope for a substantial capacity increase for the next generation wireless applications, which ought to deliver a much higher transmission rate than possible today.
| Original language | English |
|---|---|
| Pages (from-to) | 1349-1353 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 58 |
| Issue number | 2 |
| Publication status | Published - 2003 |
| Event | 2003 IEEE 58th Vehicular Technology Conference, VTC2003-Fall - Orlando, FL, United States Duration: 2003 Oct 6 → 2003 Oct 9 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics