Results 31 to 40 of about 19,333 (281)

Robust Transceiver Design for IRS-Assisted Cascaded MIMO Communication Systems

open access: yesSensors, 2022
Intelligent reconfigurable surfaces (IRSs) have gained much attention due to their passive behavior that can be a successor to relays in many applications. However, traditional relay systems might still be a perfect choice when reliability and throughput
Hossein Esmaeili   +2 more
doaj   +1 more source

Distribute algorithm for two-hops Device-to-Device communications underlaying cellular networks

open access: yes上海师范大学学报. 自然科学版, 2015
This paper proposed a power control algorithm for multi-hops device to device communication system under the single cellular networks.Different D2D links communicate by the shared band and users in one D2D links transmit message in two-hop Decode-and ...
CHEN Zhaoyu, LUO Hanwen
doaj   +1 more source

NOMA-Based User Cooperation With Incremental Hybrid Forwarding Protocols

open access: yesIEEE Open Journal of the Communications Society, 2021
In this paper, we investigate the performance of a non-orthogonal multiple access (NOMA) wireless system, in which signal transmission of a far user is assisted by a near user.
Suyue Li   +5 more
doaj   +1 more source

Mobile User Connectivity in Relay-Assisted Visible Light Communications

open access: yesSensors, 2018
In this paper, we investigate relay-assisted visible light communications (VLC) where a mobile user acts as a relay and forwards data from a transmitter to the end mobile user.
Petr Pešek   +5 more
doaj   +1 more source

Superposition-coded concurrent decode-and-forward relaying [PDF]

open access: yes2008 IEEE International Symposium on Information Theory, 2008
Proceedings of the 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, July 6 - 11 ...
Wang, C.   +9 more
openaire   +3 more sources

Energy Efficiency Analysis in Amplify-And-Forward and Decode-And-Forward Cooperative Networks [PDF]

open access: yes2010 IEEE Wireless Communication and Networking Conference, 2010
In this paper, we have studied the energy efficiency of cooperative networks operating in either the fixed Amplifyand- Forward (AF) or the selective Decode-and-Forward (DF) mode. We consider the optimization of the M-ary quadrature amplitude modulation (MQAM) constellation size to minimize the bit energy consumption under given bit error rate (BER ...
Qing Chen 0003, Mustafa Cenk Gursoy
openaire   +2 more sources

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Performance analysis of multi-relay DF cooperative communication system based on directional antenna

open access: yesDianxin kexue, 2016
In order to achieve reliable communication in multi-relay cooperative communication,the directional antenna combining multi-relay cooperative communication system and optimal relay selection decode-and-forward cooperative strategy was presented.Firstly ...
Mingwei WANG   +3 more
doaj   +2 more sources

Full Duplex AF and DF Relaying Under Channel Estimation Errors for V2V Communications

open access: yesIEEE Access, 2018
In this paper, we investigate the outage performance of full-duplex (FD) and half-duplex (HD) vehicle to vehicle (V2V) networks. We consider two vehicular communication scenarios with the assistance of roadside unit (RSU), i.e., RSU-to-vehicle-to-vehicle
Siye Wang, Dandi Wang, Chao Li, Wenbo Xu
doaj   +1 more source

Lattice Codes for the Gaussian Relay Channel: Decode-and-Forward and Compress-and-Forward [PDF]

open access: yesIEEE Transactions on Information Theory, 2013
Lattice codes are known to achieve capacity in the Gaussian point-to-point channel, achieving the same rates as independent, identically distributed (i.i.d.) random Gaussian codebooks. Lattice codes are also known to outperform random codes for certain channel models that are able to exploit their linearity. In this work, we show that lattice codes may
Yiwei Song, Natasha Devroye
openaire   +2 more sources

Home - About - Disclaimer - Privacy