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We investigate the performance limits and associated power allocation problems in a multiple-antenna diversity system with statistical channel information available at the transmitter. ... The channels are assumed to be independent and non-identically distributed Rayleigh fading. ... It can be accomplished by using space-time block codes (STBC) or other spreading codes together with appropriate combining at the receiver. ...doi:10.1109/tvt.2008.927040 fatcat:jcc6mm6farfe7ifss7swjvyjuq
We show that a hybrid system robust to different weather conditions is obtained by joint bit-interleaved coded modulation (BICM) of the bit streams transmitted over the RF and FSO sub-channels. ... An asymptotic performance analysis reveals that a properly designed convolutional code can exploit the diversity offered by the independent sub-channels. ... In our work, we extend the theory to nonidentical, heterogeneous parallel channels. • Algorithms and computational methods for searching the optimum combination of code and assignment pattern for different ...doi:10.1109/tcomm.2009.12.080396 fatcat:3iya5yioj5folcvavcpyw2jkoi
BF and MRC are designed for particular spatial fading correlation conditions and only then yield significant performance gains over the single-input single-output (SISO) transceiver. ... received signal vector is linearly combined with the dominant eigenvector of the correlation matrix of the channel gain vector; and 2) maximal-ratio combining (MRC)  , whereby the received signal ... Table 2 . 2 2, p. 19] extends to i.k.c. the results obtained for p.k.c. in [6, Section 9.2.3] [14, Eqn. (82)]. (5.30), p. 96], and space-time block coding [1, Eqn. (5.38), p. 97]. ...doi:10.1109/tvt.2009.2014167 fatcat:napjlkskzvaktcztzdpf52ark4
We show that distributed space-time trellis coding inherits the coding gain of space-time trellis codes over space-time block codes even in the cooperative setting. ... The first scheme is called distributed space-time block coding. Depending on the chosen design, it allows for low-complexity coherent, differential, and noncoherent detection. ... The first scheme that we propose is distributed space-time block coding. De- pending on the chosen design, distributed space-time block codes (DSTBCs) Yiu, R. Schober, and L. Lampe. ...doi:10.14288/1.0100841 fatcat:twuwo6nnbjbkxiuyaqcgf3d3gy
In this backdrop, we propose the improper Gaussian signaling (IGS) to mitigate the drastic impact of HWIs and improve the system performance in terms of achievable rate and outage probability. ... Numerous studies have commenced efforts to model one or the other forms of hardware impairments in the ra- dio frequency (RF) transceivers. ... The important class of space-time block-codes for MIMO channels i.e., linear dispersion codes is constructed from linear combination of input symbols and their complex conjugates. ...doi:10.25781/kaust-i5t5s fatcat:lkswx5cfjrdqrdjytuskjp77ya