Title :
Generalized principal ratio combining for space-time codes in slowly fading channels
Author :
Kim, Young Ju ; Lee, Hwang Soo
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
We present a generalized version of principal ratio combining (PRC), which is a near-optimum detection scheme for space-time codes in quasistatic flat fading environments. In Tarokh and Lo (1998), the performance penalty increases as the number of receive antennas increases. In the proposed scheme, receive antennas are optimally grouped by K, and the PRC detection method is applied to each group. This shows a flexible tradeoff between performance and decoding complexity by choosing the appropriate K.
Keywords :
antenna arrays; channel coding; computational complexity; diversity reception; fading channels; land mobile radio; maximum likelihood decoding; receiving antennas; signal detection; PRC detection method; decoding complexity; generalized principal ratio combining; near-optimum detection scheme; performance; performance penalty; quasistatic flat fading environment; receive antennas; slowly fading channels; space-time codes; Constellation diagram; Diversity reception; Fading; Maximum likelihood decoding; Mobile antennas; Partial response channels; Receiving antennas; Space time codes; Transmitting antennas; Wireless communication;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.892196
