Results 261 to 270 of about 2,606,146 (326)

Two-Stage Single-Relay Channel Model for In-Home Broadband PLC Systems

IEEE Systems Journal, 2019
This paper discusses the two-stage single-relay channel model for in-home broadband power line communication links with up to two hops. This channel model consists of the concatenation of two single-relay channels that can result in eight configurations;
Mateus de Lima Filomeno, G. R. Colen, Lucas Giroto de Oliveira, Moises Vidal Ribeiro   +3 more
semanticscholar   +1 more source

Relaying selection based multiple access relay channel

2016 24th Signal Processing and Communication Application Conference (SIU), 2016
Relay selection in case of fast cascade Rayleigh fading channels has been examined in multiple access relay channel structure which is one of the high spectral efficiency network coding applications. Error performance analysis of MARC system has been made for noncoherent binary frequency shift keying (BFSK) and it has been shown that the proposed ...
Karabulut, Muhammet Ali, Ozdemir, Ozgur, Ilhan, Haci   +2 more
openaire   +3 more sources

Relaying strategies for the interference relay channel

2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2012
In this paper, the two-user interference relay channel (IRC) is studied. Transmission schemes for this network are compared. Namely, compress-and-forward (CF) and functional decode-and-forward (FDF) are presented. In CF, the relay establishes cooperation with the users by compressing its observation and forwarding it to the receivers. In FDF, the relay
Anas Chaaban, Aydin Sezgin
openaire   +1 more source

Covert Communication With the Help of Relay and Channel Uncertainty

IEEE Wireless Communications Letters, 2019
Covert communication aims to hide the existence of the transmissions to guarantee the security in wireless communications. In this letter, channel uncertainty is exploited to achieve covert communication in relay networks.
Jianquan Wang, Wanbin Tang, Qiangqiang Zhu, Xiaoping Li, Hangmei Rao, Shaoqian Li   +5 more
semanticscholar   +1 more source

Optimal Relay Location for Fading Relay Channels

2010 IEEE 72nd Vehicular Technology Conference - Fall, 2010
In this paper we study the problem of relayenhanced cell (REC) coverage for which relay location is optimized to maximize the achievable REC radius. The problem is investigated for both Rayleigh and Rician relay fading channels, under a pre-determined user's outage probability constraint.
Rui Yin, Yu Zhang, Jietao Zhang, Guanding Yu, Zhaoyang Zhang, Halim Yanikomeroglu   +5 more
openaire   +1 more source

Artificial Noise Aided Secure Precoding for MIMO Untrusted Two-Way Relay Systems With Perfect and Imperfect Channel State Information

IEEE Transactions on Information Forensics and Security, 2018
Physical-layer secure is an important issue for untrusted relay systems. In this paper, we investigate secure precoding design for non-regenerative multiple-input multiple-output untrusted two-way relay systems, where artificial noise (AN) is applied at ...
Quanzhong Li, Liang Yang
semanticscholar   +1 more source

Gaussian interfering relay channels

2013 Asilomar Conference on Signals, Systems and Computers, 2013
We extend the primitive relay channel (PRC) introduced by Cover and Kim to a more general scenario where two Gaussian PRC's cause interference to each other. We show that extended hash-and-forward relaying with proper power allocation can achieve bounded gaps to the capacity region of the Gaussian channel in different regimes of channel parameters.
Hieu T. Do, Tobias J. Oechtering, Mikael Skoglund, Mai Vu   +3 more
openaire   +1 more source

Partial cognitive relay channel

2009 IEEE Information Theory Workshop on Networking and Information Theory, 2009
We define partial cognitive relay channel as a two-transmitter, two-receiver interference channel with a relay node such that one of the transmitters is a cognitive transmitter. As a more feasible assumption we assume that the cognitive transmitter has non-causally access to a part of the other transmitter's encoded message.
Masih Nilchian, Vahid Aref, Mohammad Reza Aref   +2 more
openaire   +1 more source

Rateless coding for wireless relay channels

Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
We propose a novel coding framework for wireless relay channels based on rateless codes, which allows for a natural extension to multiple antenna and multiple relay settings. The relaying protocol is half-duplex, and relays independently choose when to collaborate, if at all.
Jeff Castura, Yongyi Mao
openaire   +1 more source

Relaying functions for the multiple access relay channel

2010 6th International Symposium on Turbo Codes & Iterative Information Processing, 2010
In this paper, we investigate the benefit of joint network-channel (JNC) distributed coding for the multiple-access half-duplex relay channel. In contrast with previous work, the orthogonality of the medium access is partially relaxed and the source-to-relay links are not error-free. More specifically, the sources are allowed to transmit simultaneously
Hatefi, Atoosa, Visoz, Raphaël, Berthet, Antoine O.   +2 more
openaire   +2 more sources