We take a capacity view of a number of different space-time coding (STC) schemes. While the Shannon capacity of multiple-input multiple-output (MIMO) channels has been known for a number of years now, the attainment of these capacities remains a challenging issue in many cases. The introduction of space-time coding schemes in the last 2–3 years has, however, begun paving the way towards the attainment of the promised capacities. In this work we attempt to describe what are the attainable information rates of certain STC schemes, by quantifying their inherent capacity penalties. The obtained results, which are validated for a number of typical cases, cast some interesting light on the merits and tradeoffs of different techniques. Further, they point to future work needed in bridging the gap between the theoretically expected capacities and the performance of practical systems.
This article is part of the series Space-Time Coding and its Applications Part II.
On the Capacity of Certain Space-Time Coding Schemes
1 Global Wireless Systems Research Department, Bell Laboratories, Lucent Technologies, 791 Holmdel-Keyport Road, Holmdel, NJ 07733, USA
2 Wireless Communications Research Department, Bell Laboratories, Lucent Technologies, 791 Holmdel-Keyport Road, Holmdel, NJ 07733, USA
EURASIP Journal on Advances in Signal Processing 2002, 2002:292150 doi:10.1155/S1110865702000811
The electronic version of this article is the complete one and can be found online at: http://asp.eurasipjournals.com/content/2002/5/292150
|Received:||30 May 2001|
|Revisions received:||22 February 2002|
|Published:||30 May 2002|
© 2002 Papadias and Foschini