Results 21 to 30 of about 12,657 (255)
Cooperative Spectrum Sensing Schemes with the Interference Constraint in Cognitive Radio Networks
In this paper, we propose cooperative spectrum sensing schemes, called decode-and-forward cooperative spectrum sensing (DF-CSS) scheme and amplify-and-forward cooperative spectrum sensing (AF-CSS) scheme, in cognitive radio networks.
Tri-Nhu Do, Beongku An
doaj +1 more source
The scheme of combining relay and optical code division multiple access (OCDMA) is one of the effective methods to improve the reliability and security of free space optical (FSO) communication system.
Jianhua Ji +4 more
doaj +1 more source
Distributed Decode–Forward for Relay Networks
32 pages, 5 figures, submitted to the IEEE Transactions on Information ...
Sung Hoon Lim +2 more
openaire +2 more sources
Performance Comparison of Relay-Based Covert Communications: DF, CF and AF
In this paper, we investigate the performance of covert communications in different types of a relay system: decode-and-forward (DF), compress-and-forward (CF) and amplify-and-forward (AF).
Jihwan Moon
doaj +1 more source
An Efficient Partner Selection Method to Overcome the Interference Effect in Wireless Networks
In this paper, through a mathematical analysis of the overall links capacity equation, we present an efficient partner selection criterion in a cooperative communication scheme with a time-varying fading channel and severe interference on the cooperative
Jamal A. Hassan, Samah A. Mustafa
doaj +1 more source
PERFORMANCE ANALYSIS OF COOPERATION SCHEMES IN EAVESDROPPER ASSISTED RELAY CHANNEL [PDF]
The prominence of the wireless communication has been urging the monotonically increasing demand of security and privacy. In wireless systems, the notion of perfect secrecy of information with respect to illegitimate nodes can be ensured via physical ...
Vaibhav Kumar Gupta, Poonam Jindal
doaj
Multipair Two-Way DF Relaying With Cell-Free Massive MIMO
We consider a two-way half-duplex decode-and-forward (DF) relaying system with multiple pairs of single-antenna users assisted by a cell-free (CF) massive multiple-input multiple-output (mMIMO) architecture with multiple-antenna access points (APs ...
Anastasios K. Papazafeiropoulos +3 more
doaj +1 more source
Robust Transceiver Design for IRS-Assisted Cascaded MIMO Communication Systems
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
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
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

