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pro vyhledávání: '"Mohsen Hejazi"'
Autor:
Tommy Svensson, Behrooz Makki, Seyed Mohammad Azimi-Abarghouyi, Mohsen Hejazi, Masoumeh Nasiri-Kenari
Publikováno v:
IEEE Wireless Communications Letters. 5:652-655
In this letter, we introduce a decentralized compute-and-forward (DCMF) protocol to solve the rank failure problem in compute-and-forward (CMF) ad hoc multi-user multi-relay networks without a central coordinator. In sufficiently strong inter-relay l
Autor:
Seyed Mohammad Azimi-Abarghouyi, Tommy Svensson, Masoumeh Nasiri-Kenari, Behrooz Makki, Mohsen Hejazi
Publikováno v:
IEEE Transactions on Vehicular Technology. 65:8112-8129
This paper develops efficient compute-and-forward (CMF) schemes in multiuser multirelay networks. To solve the rank failure problem in CMF setups and to achieve full diversity of the network, we introduce two novel CMF methods, namely, extended CMF a
Autor:
Mohsen Hejazi, Bahman Abolhassani
Publikováno v:
Electrical Engineering (ICEE), Iranian Conference on.
Spectrum sensing is the key functionality of the cognitive radio networks. A variety of methods for a reliable and robust spectrum sensing scheme has been proposed. However, noise uncertainty, fading and correlation among receivers degrade the perfor
Publikováno v:
IET Communications. 9:451-459
In this study, a new two-way relaying scheme based on compute-and-forward (CMF) framework and relay selection strategies is proposed, which provides a higher throughput than the conventional two-way relaying schemes. Two cases of relays with or witho
Autor:
Mohsen Hejazi, Behrooz Makki, Tommy Svensson, Seyed Mohammad Azimi-Abarghouyi, Masoumeh Nasiri-Kenari
In this paper, we propose a scheme referred to as integer-forcing message recovering (IFMR) to enable receivers to recover their desirable messages in interference channels. Compared to the state-of-the- art integer-forcing linear receiver (IFLR), ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::316d2075bf8d0cddb32d053082fac16b
Autor:
Mohsen Hejazi, Masoumeh Nasiri-Kenari
Publikováno v:
IET Communications. 7:2054-2063
The compute-and-forward (CMF) method has shown a great promise as an innovative approach to exploit interference towards achieving higher network throughput. The CMF was primarily introduced by means of information theory tools. Although there have b
In this paper, we propose a new transmission scheme, named as Integer Forcing-and-Forward (IFF), for communications among multi-pair multiple-antenna users in which each pair exchanges their messages with the help of a single multi antennas relay in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fabcd522d09d7fb12ffb71a2a9200f2
We propose a novel cooperative transmission scheme called "Convolutional Network-Coded Cooperation" (CNCC) for a network including N sources, one M-antenna relay, and one common destination. The source-relay (S-R) channels are assumed to be Nakagami-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfaa62816e75386fc41095d56049f30d
http://arxiv.org/abs/1304.4383
http://arxiv.org/abs/1304.4383
Autor:
Mohsen Hejazi, Bahman Abolhassani
Publikováno v:
2010 IEEE Symposium on Industrial Electronics and Applications (ISIEA).
The well-known energy detector, due to its simplicity, has been proposed as an efficient spectrum sensing method for cognitive radio networks. However, shadowing and fading degrade performance of energy detector. In this paper, to combat these effect