Results 11 to 20 of about 337,244 (282)

Coded Caching for Broadcast Networks with User Cooperation

open access: yesEntropy, 2022
Caching technique is a promising approach to reduce the heavy traffic load and improve user latency experience for the Internet of Things (IoT). In this paper, by exploiting edge cache resources and communication opportunities in device-to-device (D2D ...
Zhenhao Huang   +4 more
doaj   +1 more source

Cooperative space-time codes with network coding [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2012
Because of the gains like diversity, throughput, and the coverage extension provided by the multiple-input multiple-out (MIMO) systems, it has been part of the various wireless communications standards. However, to reap the benefits offered by MIMO systems in size-constrained nodes, used in wireless communications, has been a challenging issue.
Gordhan Das Menghwar   +4 more
openaire   +1 more source

Distributed QC-LDPC Coded Spatial Modulation for Half-Duplex Wireless Communications [PDF]

open access: yesRadioengineering, 2022
The bit error rate (BER) performance of spatial modulation (SM) can be further improved by applying quasi-cyclic low-density parity-check (QC-LDPC) codes recommended in 5G to SM.
C. L. Zhao   +4 more
doaj  

Performance Bounds for Bi-Directional Coded Cooperation Protocols [PDF]

open access: yes, 2007
In coded bi-directional cooperation, two nodes wish to exchange messages over a shared half-duplex channel with the help of a relay. In this paper, we derive performance bounds for this problem for each of three protocols.
Kim, Sang Joon   +2 more
core   +6 more sources

On the Performance of Coded Cooperative Communication with Multiple Energy-Harvesting Relays and Error-Prone Forwarding

open access: yesApplied Sciences, 2023
In this paper, we consider a coded cooperative communication network with multiple energy-harvesting (EH) relays. In order to adequately address the problem of error propagation due to the erroneous decoding at the relays, as in the case of conventional ...
Slim Chaoui   +4 more
doaj   +1 more source

Network-coding-based coded cooperation

open access: yesJournal of Communications and Networks, 2010
Coded cooperation is a promising user cooperation scheme. In this paper, we first propose a novel network-coding-based coded cooperation scheme. When a user decodes its partner's information correctly in the first frame, it transmits the combination of the partner's parity bits and its own parity bits through network coding in the second frame. This is
Suwen Wu   +3 more
openaire   +1 more source

Reed-Solomon Coded Cooperative Spatial Modulation Based on Nested Construction for Wireless Communication [PDF]

open access: yesRadioengineering, 2021
This paper proposes the Reed-Solomon coded cooperative spatial modulation (RSCC-SM) scheme based on nested construction of two Reed-Solomon (RS) codes over quasi-static Rayleigh fading channel.
C. L. Zhao, F. F. Yang, D. K. Waweru
doaj  

Optimized Design of Distributed Quasi-Cyclic LDPC Coded Spatial Modulation

open access: yesSensors, 2023
We propose a distributed quasi-cyclic low-density parity-check (QC-LDPC) coded spatial modulation (D-QC-LDPCC-SM) scheme with source, relay and destination nodes. At the source and relay, two distinct QC-LDPC codes are used.
Chunli Zhao   +4 more
doaj   +1 more source

Outage analysis of superposition modulation aided network coded cooperation in the presence of network coding noise [PDF]

open access: yes, 2015
We consider a network, where multiple sourcedestination pairs communicate with the aid of a half-duplex relay node (RN), which adopts decode-forward (DF) relaying and superposition-modulation (SPM) for combining the signals transmitted by the source ...
El-Hajjar, Mohammed   +4 more
core   +1 more source

Nested turbo codes for the costa problem [PDF]

open access: yes, 2008
Driven by applications in data-hiding, MIMO broadcast channel coding, precoding for interference cancellation, and transmitter cooperation in wireless networks, Costa coding has lately become a very active research area.
Cheng, Samuel   +5 more
core   +1 more source

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