Optimal Channel Shortening for MIMO and ISI Channels
Publikation/Tidskrift/Serie: IEEE Transactions on Wireless Communications
Dokumenttyp: Artikel i tidskrift
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.
We deal with the construction of optimal channel shortening, also known as combined linear Viterbi detection, algorithms for ISI and MIMO channels. In the case of MIMO channel shortening, the tree structure to represent MIMO signals is replaced by a trellis. The optimization is performed from an information theoretical perspective and the achievable information rates of the shortened models are derived and optimized. Closed form expressions for all components of the optimal detector of the class are derived. Furthermore, we show that previously published channel shortening algorithms can be seen as special cases of the derived model.
- Electrical Engineering, Electronic Engineering, Information Engineering
- combined linear Viterbi detection
- trellis optimization
- applied Shannon
- trellis detection
- BCJR Algorithm
- rate computation
- inter-symbol interference
- reduced complexity detection
- ISSN: 1536-1276