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In this paper, the error rate performance of joint transmit and receive antenna selection (JTRAS) is investigated for independent and identically distributed (i.i.d.) flat Nakagami-m fading channels with arbitrary real values of m. Simple and exact bit error rate (BER) expressions for integer and non-integer fading parameter m are derived by using the moment generating function (MGF) based analysis...
In this paper, we study low complexity double space time transmit diversity (D-STTD) and orthogonal frequency division multiplexing (OFDM) system with antenna shuffling. We propose a novel antenna shuffling method based on the criterion of minimizing the condition number of channel correlation matrix. The condition number is an indicator about the quality of the channel. By selecting the minimum of...
In this paper, a scheme of modulation diversity with multiple turbo codes is studies. Rotation of the signal constellation together with in-phase and quadrature channel interleaving is known to prove good performance gains over fading channels for multi level modulation methods. Recently it has been shown that multiple turbo codes with very simple sub-codes outperform conventional 2-parallel turbo...
In this paper, we study performance improvement for double space time transmit diversity (D-STTD) with orthogonal frequency division multiplexing (OFDM) system. The D-STTD OFDM system can achieve both spatial diversity and multiplexing gains simultaneously in frequency selective MIMO channels. For this system, zero forcing (ZF) and minimum mean square error (MMSE) linear receivers are derived by a...
In this paper, we study a practical design for hybrid space-time block coding (STBC) and spatial multiplexing (SM) with orthogonal frequency division multiplexing (OFDM) systems. The hybrid STBC-SM OFDM systems can achieve both spatial diversity and multiplexing gains simultaneously in frequency selective MIMO channels. For the hybrid designs, zero forcing (ZF) and minimum mean square error (MMSE)...
When mobiles cannot support multiple antennas due to size or other constraints, cooperative diversity is an efficient way to provide uplink transmit diversity. This paper presents a novel cooperative coding scheme in use of rate-compatible parallel concatenated LDPC codes. We evaluate its performance in terms of bit error rate. Simulation results show our scheme provides significant performance gains...
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