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This paper studies the multi-cell cooperative transmission based on interference alignment (IA). A new macro-diversity approach is presented in which each BS not only transmits data to its serving users but also transmits data to the users belonging to the cooperative BSs. By coherently designing the precoding and detection matrices, desired signals from multi-BSs are detected to achieve macro-diversity...
This paper proposes a downlink multi-user transmission scheme for the amplify-and-forward (AF)-based multi-relay cellular network, in which Tomlinson-Harashima precoding (TH precoding) and interference alignment (IA) are jointly applied. The whole process of transmission is divided into two phases: TH precoding is first performed at base-station (BS) to support the multiplexing of data streams transmitted...
This paper proposes a pre-equalized transmission scheme based on a finite field transform. Unlike orthogonal frequency division multiplexing (OFDM) which transmits signals on orthogonal sub- carriers at the transmitter and explores post-equalization to migrate the effect of multi-path fading at the receiver, in the proposed scheme, signals are processed with the finite field transform called basefield...
We presents the precise bit error rate (BER) analysis for a binary phase-shift keying (BPSK) system in two-wave with diffuse power (TWDP) fading channel in co-channel interference (CCI) environment. A precise BER expression is derived using a characteristic function (CF) for the case of perfect coherent detection. The method of Chernoff Bound is used to derive the BER versus SIR. The impact of different...
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