Abstract
This paper proposes a novel approach to interference avoidance via inter-cell relaying in cellular OFDMA-TDD (orthogonal frequency division multiple access - time division duplex) systems. The proposed scheme, termed asymmetry balancing, is targeted towards next-generation cellular wireless systems which are envisaged to have ad hoc and multi-hop capabilities. Asymmetry balancing resolves the detrimental base station (BS)-to-BS interference problem inherent to TDD networks by synchronizing the TDD switching points (SPs) across cells. In order to maintain the flexibility of TDD in serving the asymmetry demands of individual cells, inter-cell relaying is employed. It is demonstrated that asymmetry balancing offers great flexibility in uplink (UL)- downlink (DL) resource allocation. In addition, results show that a spectral efficiency improvement of more than 100% can be obtained with respect to a case where the TDD SPs are adapted to the cell-specific demands.
| Original language | English |
|---|---|
| Title of host publication | 2008 IEEE 68th Vehicular Technology Conference |
| DOIs | |
| Publication status | Published - 24 Oct 2008 |
| Externally published | Yes |
| Event | 2008 IEEE 68th Vehicular Technology Conference - Calgary, Canada Duration: 21 Sept 2008 → 24 Sept 2008 http://ieeevtc.org/vtc2008fall/ (Link to conference website) |
Publication series
| Name | IEEE Vehicular Technology Conference |
|---|---|
| ISSN (Print) | 1550-2252 |
Conference
| Conference | 2008 IEEE 68th Vehicular Technology Conference |
|---|---|
| Abbreviated title | VTC2008-Fall |
| Country/Territory | Canada |
| City | Calgary |
| Period | 21/09/08 → 24/09/08 |
| Internet address |
|
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics