Abstract
Wireless scheduling algorithms can extract multi-user diversity (MUDiv) via prioritizing the users with best current channel conditions. One drawback of MUDiv is the required feedback carrying the instantaneous channel rates from from all active subscribers to the access point/base station. This paper shows that this feedback load is, for the most part, unjustified. To alleviate this problem, we propose a technique allowing to dramatically reduce the feedback (by up to 90%) needs while preserving the essential of the scheme performance. We provide a theoretical analysis of the feedback load as function of the system's ergodic and outage capacity for both the traditional MUDiv scheme and the new scheme.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 234-238 |
| Number of pages | 5 |
| Journal | IEEE International Conference on Communications |
| Volume | 1 |
| DOIs | |
| State | Published - 2004 |
| Externally published | Yes |
| Event | 2004 IEEE International Conference on Communications - Paris, France Duration: Jun 20 2004 → Jun 24 2004 |
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering