Journal ArticleDOI
Asynchronous Cooperative MIMO Systems Using a Linear Dispersion Structure
Nan Wu,Hamid Gharavi +1 more
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TLDR
This treatise proposes a novel family of asynchronous cooperative linear dispersion codes (ACLDCs), which is capable of maintaining full diversity in cooperative scenarios, even in the presence of asynchronous reception.Abstract:
In this treatise, we propose a novel family of asynchronous cooperative linear dispersion codes (ACLDCs), which is capable of maintaining full diversity in cooperative scenarios, even in the presence of asynchronous reception. The linear dispersion structure is employed to accommodate the dynamic topology of cooperative networks, as well as to achieve higher throughput than conventional space-time codes based on orthogonal designs. By introducing guard intervals and block encoding/decoding techniques, the interference signals caused by asynchronous reception can be exploited rather than discarded.read more
Citations
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A Survey on Cooperative Diversity for Wireless Networks
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Advances in Cooperative Single-Carrier FDMA Communications: Beyond LTE-Advanced
TL;DR: These discussions demonstrate that these advanced techniques optimally exploit the resources in the context of cooperative single-carrier FDMA system, which is a promising enabler for various uplink transmission scenarios.
Journal ArticleDOI
Design and Implementation of Optimum LSD Coded Signal Processing Algorithm in the Multiple-Antenna System for the 5G Wireless Technology
TL;DR: The proposed O-LSDC under Rayleigh fading channel using the M-PSK modulation enhances the performance of the 5G and beyond communication system in terms of BER and SNR.
Journal ArticleDOI
Cooperative diversity routing and transmission for wireless sensor networks
Hamid Gharavi,Bin Hu +1 more
TL;DR: A novel design framework aimed at developing `cooperative diversity' in 802.11-based wireless sensor networks is presented, and it is shown that a substantial gain can be achieved by cooperative diversity using a virtual multiple input multiple output system architecture.
Journal ArticleDOI
Time-Reversal Space–Time Codes in Asynchronous Two-Way Relay Networks
Yun Liu,Wei Zhang,P. C. Ching +2 more
TL;DR: A family of zero-padded time-reversal STC that can achieve full diversity with low-complexity maximum likelihood (ML) decoding, given a bound for the path delay difference is proposed.
References
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Journal ArticleDOI
A simple transmit diversity technique for wireless communications
TL;DR: This paper presents a simple two-branch transmit diversity scheme that provides the same diversity order as maximal-ratio receiver combining (MRRC) with one transmit antenna, and two receive antennas.
Journal ArticleDOI
Space-time block codes from orthogonal designs
TL;DR: A generalization of orthogonal designs is shown to provide space-time block codes for both real and complex constellations for any number of transmit antennas and it is shown that many of the codes presented here are optimal in this sense.
Journal ArticleDOI
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
J.N. Laneman,Gregory W. Wornell +1 more
TL;DR: This work develops and analyzes space-time coded cooperative diversity protocols for combating multipath fading across multiple protocol layers in a wireless network and demonstrates that these protocols achieve full spatial diversity in the number of cooperating terminals, not just theNumber of decoding relays, and can be used effectively for higher spectral efficiencies than repetition-based schemes.
Journal ArticleDOI
A universal lattice code decoder for fading channels
TL;DR: By judicious choice of the decoding radius, it is shown that this maximum-likelihood decoding algorithm can be practically used to decode lattice codes of dimension up to 32 in a fading environment.
Journal ArticleDOI
High-rate codes that are linear in space and time
TL;DR: This work proposes a high-rate coding scheme that can handle any configuration of transmit and receive antennas and that subsumes both V-BLAST and many proposed space-time block codes as special cases and shows that their performance is generally superior to earlier proposed methods over a wide range of rates and signal-to-noise ratios (SNRs).
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