Abstract
In this letter, a union bound on the error probability of coded multi-antenna systems over block fading channels is derived. The bound is based on uniform interleaving of the coded sequence prior to transmission over the channel. Using this argument the distribution of error bits over the fading blocks is computed and the corresponding pairwise error probability (PEP) is derived. We consider coded systems that concatenate a binary code with a space-time block code (STBC). Coherent detection is assumed with perfect and imperfect channel state information (CSI) at the receiver, where imperfect CSI is obtained using pilot-aided estimation. Under channel estimation environments, the tradeoff between channel diversity and channel estimation is investigated and the optimal channel memory is approximated analytically. Results show that the performance degradation due to channel memory decreases as the number of transmit antennas is increased. Moreover, the optimal channel memory increases with increasing the number of transmit antennas.
| Original language | English |
|---|---|
| Pages (from-to) | 972-977 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 5 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2006 |
Bibliographical note
Funding Information:Manuscript received November 12, 2003; revised December 22, 2004 and April 18, 2005; accepted April 24, 2005. The associate editor coordinating the review of this paper and approving it for publication was K. B. Lee. This work was supported in part by King Fahd University of Petroleum and Minerals (KFUPM) and the Office of Naval Research under grant N00014-03-1-0232.
Keywords
- Block fading
- Block interference
- Channel estimation
- Convolutional
- MIMO
- Multi-antenna
- Space-time block codes
- Union bound
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics