# Space-Time Block Codes from Co-ordinate Interleaved Orthogonal Designs

Khan, Md Zafar Ali and Rajan, Sundar B (2002) Space-Time Block Codes from Co-ordinate Interleaved Orthogonal Designs. In: IEEE International Symposium on Information Theory, 2002, June 30 - July 5, Lausanne,Switzerland, p. 275.

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## Abstract

In this paper we present space-time block codes called 'co-ordinate interleaved orthogonal designs' (CIOD). These codes have low decoding complexity; the same as that of the codes from complex orthogonal designs (COD). Rate 1 CIOD exist for two, three and four transmit antennas and rate $\frac{3}{4}$ CIOD exist for five, six, seven and eight transmit antennas while COD exists only for two antennas and generalized COD (GCOD) of rate $\frac{3}{4}$ are known to exist for three and four transmit antennas only. The maximum mutual information of these codes is also calculated.

Item Type: Conference Paper Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Division of Electrical Sciences > Electrical Communication Engineering 18 Jan 2006 19 Sep 2010 04:22 http://eprints.iisc.ernet.in/id/eprint/5144