Abstract
Deep shadowing and "hot-spots" are two challenging issues in wireless networks. Aiming to resolve these issues, we take a cross-layer design approach and devise a hierarchical multiuser diversity (HMD) transmission scheme, in which a user can choose to communicate with the base station either directly or using multiple hops via relay stations. Using a throughput-based criterion, we develop a direct/relay link construction algorithm. We then explore opportunistic scheduling under performance-based fairness constraints, for both direct links and relay links; a key goal is to achieve multiuser diversity in both tiers. Our results show that the HMD scheme can combat shadowing and "hot-spots" effectively in the sense that the total system throughput is increased significantly while the throughput requirements of the users are met.
| Original language | English (US) |
|---|---|
| Title of host publication | GLOBECOM - IEEE Global Telecommunications Conference |
| Pages | 3014-3019 |
| Number of pages | 6 |
| Volume | 6 |
| State | Published - 2003 |
| Event | IEEE Global Telecommunications Conference GLOBECOM'03 - San Francisco, CA, United States Duration: Dec 1 2003 → Dec 5 2003 |
Other
| Other | IEEE Global Telecommunications Conference GLOBECOM'03 |
|---|---|
| Country/Territory | United States |
| City | San Francisco, CA |
| Period | 12/1/03 → 12/5/03 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Global and Planetary Change