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Space Shift Keying (SSK) Modulation: On the Transmit-Diversity / Multiplexing Trade-Off

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Original languageUndefined/Unknown
Title of host publicationProc. of the International Conference on Communications (ICC)
Place of PublicationKyoto, Japan
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-6
Number of pages6
DOIs
Publication statusPublished - 1 Jun 2011

Abstract

Space Shift Keying (SSK) is a low-complexity modulation scheme for multiple-antenna wireless systems. In this paper, we analyze the transmit-diversity/multiplexing trade-off of SSK modulation with the main objective of developing practical solutions to achieve transmit-diversity. More specifically, the contributions of this paper are as follows: i) we propose a practical scheme that achieves transmit-diversity equal to two for any number of antennas at the transmitter. The solution is based on the so-called Time-Orthogonal-Signal-Design (TOSD) principle introduced in, and adopts time-orthogonal shaping filters at the transmitter; ii) we show that the TOSD principle with orthogonal shaping filters can be applied to the so-called Generalized SSK (GSSK) modulation scheme in, and that a transmit-diversity equal to two can still be obtained while increasing the data rate with respect to SSK modulation; and iii) we propose a general encoding scheme that allows us to get transmit-diversity greater than two. The solution combines TOSD and GSSK principles in a unique fashion, and is flexible enough to accommodate various transmit-diversity gains by trading-off the number of transmit-antenna, the number of simultaneously-active transmit-antenna, and the achievable data rate. Furthermore, proposed methods and findings are substantiated via analysis and numerical simulations.

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