Nguyen N. Tran

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3911 demonstrating their versatility and effectiveness as high-performance channel codes for mobile communications. A digital fountain approach to asynchronous reliable multicast, " IEEE J. Factor graphs and the sum–product algorithm, " IEEE Trans. Design of capacity-approaching irregular low-density parity-check codes, " IEEE Trans. Inf. Design of(More)
Fig. 4. Performance comparison. (a) Final value of the metrics per factor μ i. (b) Final value of the metrics per n. protocol stack. CTC is able to distributively and asynchronously exploit available environmental and topological awareness and better allocate resources without significant overhead. Depending on the utility functions employed by CTC(More)
Optimal training design and channel estimation for spatially correlated multiuser multi-input multi-output with orthogonal frequency-division multiplexing (MIMO-OFDM) systems is still an open research topic of great interest. This study first applies tractable semi-definite programming (SDP) to obtain the optimal training signal for the general case of(More)
This paper investigates orthogonal space-time block code (OSTBC) transmission for multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying networks composed of one source, K relays, and one destination and with M-ary frequency-shift keying (FSK) modulation. A non-coherent detection scheme is proposed and analyzed in a situation where the(More)
Conditional mutual information (CMI) analysis and precoding design for generally correlated wireless multi-hop multi-input multi-output (MIMO) channels are presented in this paper. Although some particular scenarios have been examined in existing publications, this paper investigates a generally correlated transmission system having spatially correlated(More)
The optimal preceding design to maximize capacity of spatially correlated dual-hop non-regenerative multiple-input multiple-output (MIMO) relaying systems is proposed in this paper. The correlated systems generally have additive colored Gaussian noise (ACGN) at receive terminals and correlated data symbols at the source. By designing the optimal precoder in(More)
This paper studies the bit error rate (BER) performance of an adaptive decode-and-forward (DF) relaying scheme for a cooperative wireless network operating on independent and identically distributed (i.i.d.) or independent and non-identically distributed (i.n.d.) Rayleigh fading channels. The considered network is with one source, K relays, and one(More)
This paper proposes an optimal training design for an amplify-and-forward (AF) relay system in which the source, relay and destination are all equipped with multiple antennas. Examined is the scenario when spatial correlation exists among the multiple antennas employed at each node in the system and such information is properly taken into account in the(More)
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