Math @ Duke

Publications [#235827] of Robert Calderbank
Papers Published
 Tarokh, V; Seshadri, N; Calderbank, AR, Spacetime codes for high data rate wireless communication: Performance criteria,
IEEE International Conference on Communications, vol. 1
(1997),
pp. 299303
(last updated on 2018/09/21)
Abstract: We consider the design of channel codes for improving the data rate and/or the reliability of communications over fading channels using multiple transmit antennas. Here, data is encoded by a channel code and the encoded data is split into n streams that are simultaneously transmitted using n transmit antennas. The received signal at each receive antenna is a linear superposition of the n transmitted signals. We derive performance criteria for designing channel codes under the assumption that the fading is slow and frequency nonselective. Performance is shown to be determined by diversity gain quantified by ranks and coding gain quantified by determinants of certain matrices that are constructed from the code sequences.


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