I. Introduction Multiple-input and multiple-output (MIMO), uses multiple antennas at both the transmitter and receiver to improve communication performance. MIMO technology has involved consideration in wireless communications, as it offers major increase in data throughput and link range without further bandwidth or increased transmit power. It attains this goal by distributing the same total ...

Performance of cooperative diversity schemes at Low Signal to Noise Ratios (LSNR) was recently studied by Avestimehr et. al. [1] who emphasized the importance of diversity gain over multiplexing gain at low SNRs. It has also been pointed out that continuous energy transfer to the channel is necessary for achieving the max-flow min-cut bound at LSNR. Motivated by this we propose the use of Selec...

It is well known that there exists a tradeoff between the diversity gain and the multiplexing gain achievable by a particular MIMO coding scheme. In this report we first look at the optimal trade-off in the infinite signal-to-noise (SNR) regime of both Rayleigh independent and identically distributed (i.i.d.) channels and a more general MIMO channel model. We then look at the tradeoff of both S...