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Multirelay channel with non-ergodic link failures
2009
2009 IEEE Information Theory Workshop on Networking and Information Theory
Upper and lower bounds are derived on average achievable rates with respect to the prior distribution of the link failures, assuming the relays to be oblivious to the source codebook. ...
finite-capacity links. ...
This research was supported in part by a Marie Curie Outgoing International Fellowship and the NEWCOM++ network of excellence both within the 7th European Community Framework Programme, by the Israel Science ...
doi:10.1109/itwnit.2009.5158540
dblp:conf/itw/SimeoneSEPS09
fatcat:pziqsmnyhnbhtg4ezxwc5aesqe
Relay Beamforming Design with SIC Detection for MIMO Multirelay Networks with Imperfect CSI
2013
IEEE Transactions on Vehicular Technology
Since perfect channel-state information (CSI) is difficult to obtain in a practical multirelay network, we consider imperfect CSI for all channels. ...
Simulation results show that the asymptotic rate matches with the ergodic rate well. ...
Since perfect channel-state information (CSI) is difficult to obtain in a practical multirelay network, we consider imperfect CSI for all channels. ...
doi:10.1109/tvt.2013.2259857
fatcat:3vtsps6wtnf65ccwwjjkdjegqq
Robust Communication via Decentralized Processing With Unreliable Backhaul Links
2011
IEEE Transactions on Information Theory
Upper and lower bounds are derived on average achievable rates with respect to the prior distribution of the link failures, assuming the relays to be oblivious to the source codebook. ...
Communication from source to relays takes place over a (discrete or Gaussian) broadcast channel, while the relays are connected to the receiver via orthogonal finite-capacity links. ...
a slowly fading channel without channel state information. ...
doi:10.1109/tit.2011.2145830
fatcat:hf3alowx25ei5hfce7t2j4jilm
On the Performance Analysis of Multirelay Cooperative Diversity Systems With Channel Estimation Errors
2011
IEEE Transactions on Vehicular Technology
In this paper, we investigate the performance of an amplify-and-forward (AF) cooperative diversity system with multiple relays in the presence of channel estimation errors. ...
We derive closed-form expressions for error probability, outage probability, and ergodic channel capacity. The derivations are confirmed through Monte Carlo simulations. ...
A common assumption in the earlier literature on cooperative diversity is the availability of perfect channel state information (CSI) at the receiver. ...
doi:10.1109/tvt.2011.2121926
fatcat:gzxdjo4ijjbjni7zgaxdzq23vq
Precoding-Aided Spatial Modulation for the Wiretap Channel with Relay Selection and Cooperative Jamming
2018
Wireless Communications and Mobile Computing
We analyze the performance of the proposed scheme in terms of the ergodic secrecy capacity (ESC), the secrecy outage probability (SOP), and the bit error rate (BER) at Bob and Eve. ...
We provide examples with numerical and simulation results through which we demonstrate the effectiveness of the proposed scheme. ...
Assuming that the channel state information to all relays is known to Alice, let P = [p 1 , p 2 , . . . , p ] be a × precoding matrix used by Alice in order to send information to one of the relays. ...
doi:10.1155/2018/8407297
fatcat:enppfquerred7kdb5mhontymlu
Efficient Linear Processing for Non-regenerative MIMO Relay Network with Perfect CSI
2015
Research Journal of Applied Sciences Engineering and Technology
The relay acquires perfect channel state information of the channel between source to relay and relay to the destination. ...
Monte Carlo simulation confirms better performance in terms of ergodic capacity offered by the proposed scheme. ...
An appropriate condition for upper and lower bounds on the capacity were derived. ...
doi:10.19026/rjaset.11.1790
fatcat:lc2oqmlmpjf7tddmwg4zewrc3i
Throughput Maximization for Wireless Powered Buffer-Aided Successive Relaying Networks
2022
Wireless Communications and Mobile Computing
The proposed scheme approaches the optimal throughput of the wireless powered successive relaying network with bounded delay and finite length of data and energy buffers. ...
In this paper, we consider a wireless powered cooperative network, where two energy-constrained buffer-aided relays harvest energy from the source to assist the information delivery to the destination. ...
Acknowledgments The work of Yong Liu was supported in part by the National Natural Science Foundation of China under Grant 61901180 and Grant 61771406. ...
doi:10.1155/2022/4258113
doaj:2657dab223834684913b599ef64e7e1b
fatcat:ini6atipxvfqlj6dwghclqnwwm
Optimal Relay Selection Scheme with Multiantenna Power Beacon for Wireless-Powered Cooperation Communication Networks
2020
Sensors
Unlike the fixed power grid cooperative networks, which are mainly based on the reception reliability parameter while choosing the best relay, the wireless-powered cooperative communication network (WPCCN ...
and performs beamforming technique; (III) The optimal localisation of the PB between the source and N relays depends on the adopted relay selection scheme; (IV) The exhaustive search of the maximum system ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/s21010147
pmid:33383614
fatcat:2r5w6zelibc7bh2bbjawujy25y
A Tutorial on Nonorthogonal Multiple Access for 5G and Beyond
2018
Wireless Communications and Mobile Computing
In this tutorial style paper, we target providing a unified model for NOMA, including uplink and downlink transmissions, along with the extensions to multiple input multiple output and cooperative communication ...
Today's wireless networks allocate radio resources to users based on the orthogonal multiple access (OMA) principle. ...
Moreover, information of channel gains of all users should be fed back to the base station (BS), but this results in a significant channel state information (CSI) feedback overhead. ...
doi:10.1155/2018/9713450
fatcat:zcthsgv74bbjjclysfnqs4afgq
Secure Multiuser Scheduling in Downlink Dual-Hop Regenerative Relay Networks Over Nakagami- $m$ Fading Channels
2016
IEEE Transactions on Wireless Communications
Supervisor with PLA University of Science and Technology. He has authored and coauthored more than 80 conference and journal papers and and has been granted over 20 patents in his research areas. ...
His current research interests include communication anti-jamming technologies, microwave technologies, satellite communications systems, cooperative communications and physical layer security. ...
To evaluate the secrecy performance of the considered system, two practical situations are addressed based on the availability of eavesdropper's channel state information (CSI), i.e., Scenario I, where ...
doi:10.1109/twc.2016.2610965
fatcat:qfpdqvtb6nc5rjcv7sqjuezqdq
Efficient Symbol Error Rate Analysis of Cooperative Non-Regenerative Relay Systems over Generalized Fading Channels
2012
International Journal of Wireless & Mobile Networks
In this article, we develop a unified approach to the asymptotic performance analysis of symbol error rates for two-hop cooperative non-regenerative multi-relay networks over a myriad of stochastic channel ...
The accuracy of our approximations has been validated with the closed-form formulas that are available for specific fading environments (e.g., Rayleigh and Nakagami-m channels) and via computer (Monte ...
Based on the available channel state information (CSI), the relay re-encodes the signal to match the prevailing channel condition and the destination can further exploit the diversity from different encoding ...
doi:10.5121/ijwmn.2012.4101
fatcat:yguftfvvvzerrprs5b6g44qgwe
Design Criteria of Two-Hop Based Wireless Networks with Non-Regenerative Relays in Arbitrary Fading Channels
2009
IEEE Transactions on Communications
In this paper we evaluate outage performances of multirelay amplify and forward (AF) transmission over fading channels. ...
We focus on the uplink of a two-hop based network where N (with N ≥ 1) single antenna relay stations (RSs) serve as non-regenerative repeaters for the message transmitted by a single antenna source node ...
forwards this amplified signal during the reserved time fraction of 1/(N + 1) with an increased rate (N + 1)R 3 At the BS, the receiver exploits the full Channel State Information (CSI) of each link ...
doi:10.1109/tcomm.2009.05.070309
fatcat:kkxhld6egfe5bfyzgdllyalgbq
Performance analysis of cognitive AF relay networks with multiuser switched diversity in Rayleigh fading channels
2017
EURASIP Journal on Wireless Communications and Networking
addition to deriving the ergodic channel capacity. ...
In this paper, an upper bound on the e2e SNR of a user is used in deriving of closed-form approximations for the outage probability and average symbol error probability (ASEP) of the studied system in ...
Acknowledgements This work is supported by Deanship of Scientific Research (DSR) at King Fahd University of Petroleum & Minerals (KFUPM) through project #: RG1408-1,2. ...
doi:10.1186/s13638-017-0915-2
fatcat:oedyzzcapjah5c4uhfbypxoume
Performance Analysis of Opportunistic Scheduling in Dual-Hop Multiuser Underlay Cognitive Network in the Presence of Cochannel Interference
2016
IEEE Transactions on Vehicular Technology
An efficient tight approximation is proposed for the per-hop cdfs, and based on this, the closed-form expressions for the error probability and the ergodic capacity are derived. ...
Index Terms-Cochannel interference (CCI), dual-hop decode-and-forward (DF), ergodic capacity, error probability, optimization, outage probability, underlay cognitive radio (CR). ...
The impact of the primary transmitter and the imperfect channel state information were considered in their calculation. ...
doi:10.1109/tvt.2015.2504244
fatcat:nxp6tytyuza6ravqlymaqege4u
On the Throughput and Outage Probability of Multi-Relay Networks With Imperfect Power Amplifiers
2015
IEEE Transactions on Wireless Communications
His current research interests include partial channel state information (CSI) feedback, hybrid automatic repeat request, Green communication, correlated fading channels, spectrum sharing, relay, satellite ...
Finally, we investigate the performance of large-scale multi-relay networks and develop efficient multi-relay systems with low cooperation overhead. ...
power at least logarithmitically. • A large-scale multi-relay system with no channel state information (CSI) feedback reaches half the ergodic capacity of the non-relay setup with perfect CSI feedback ...
doi:10.1109/twc.2015.2431257
fatcat:thzba6zouzdqnpn7uwg5i62zoa
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