Coherent and Differential Space-Time Shift Keying - ECS EPrints ...

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3220 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 58, NO. 11, NOVEMBER 2010 coherently detected SM/SSK scheme requires Channel State Information (CSI) at the receiver, although it is a challenging task to acquire accurate CSI for high-speed vehicles, which may require a high pilot overhead and imposes a substantial processing complexity. The resultant CSI estimation error is expected to erode the achievable performance. Against this background the novel contributions of this paper are as follows: 1) Inspired by the SM/SSK scheme, we propose the novel concept of Space-Time Shift Keying (STSK) modulation, which constitutes a generalized shift-keying architecture utilizing both the space as well as time dimensions and hence includes the SM and SSK schemes as special cases. More specifically, the STSK scheme is based on the activation of
SUGIURA et al.: COHERENT AND DIFFERENTIAL SPACE-TIME SHIFT KEYING: A DISPERSION MATRIX APPROACH 3221 TABLE I EXAMPLE OF STSK MODULATION SCHEME,MAPPING 3BITS PER SPACE-TIME BLOCK, WITH THE AID OF L–PSK CONSTELLATION
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Coherent and Differential Space-Time Shift Keying - ECS EPrints ...

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