Browsing by Author "Alouini M.-S."
Now showing items 1-20 of 26
-
A diversity compression and combining technique based on channel shortening for cooperative networks
Hussain S.I.; Alouini M.-S.; Hasna , Mazen ( IEEE , 2012 , Article)The cooperative relaying process with multiple relays needs proper coordination among the communicating and the relaying nodes. This coordination and the required capabilities may not be available in some wireless systems ... -
A novel energy harvesting scheme for mixed fso-rf relaying systems
Chen J.; Yang L.; Wang W.; Yang H.-C.; Liu Y.; Hasna , Mazen; Alouini M.-S.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)In this correspondence paper, we consider the performance of a mixed free-space optical and radio frequency (FSO-RF) relaying system with energy harvesting in the existence of both atmospheric turbulence and pointing errors. ... -
A performance study of dual-hop transmissions with fixed gain relays
Hasna , Mazen; Alouini M.-S. ( IEEE , 2004 , Article)This letter presents a study on the end-to-end performance of dual-hop wireless communication systems equipped with nonregenerative fixed gain relays and operating over flat Rayleigh-fading channels. More specifically, it ... -
A signal combining technique based on channel shortening for cooperative sensor networks
Hussain S.I.; Alouini M.-S.; Hasna , Mazen ( IEEE , 2010 , Conference Paper)The cooperative relaying process needs proper coordination among the communicating and the relaying nodes. This coordination and the required capabilities may not be available in some wireless systems, e.g. wireless sensor ... -
Amount of Secrecy Loss: A Novel Metric for Physical Layer Security Analysis
Li S.; Yang L.; Hasna , Mazen; Alouini M.-S.; Zhang J. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this letter, we present a novel and important performance metric for analyzing and evaluating the physical layer security of wireless communication systems in the presence of eavesdropping users. Specifically, we introduce ... -
Average outage duration of multihop communication systems with regenerative relays
Yang L.; Hasna , Mazen; Alouini M.-S. ( IEEE , 2005 , Article)Closed-form expressions for the average outage duration (AOD) of multihop regenerative communication systems over generalized fading channels are presented. Both noise-limited and interference-limited systems are studied. ... -
Comparison of relaying strategies for cooperative diversity systems with adaptive modulation
Choi, Seyeong; Alouini, M.-S.; Yang, Hong-Chuan; Hasna, M.O. ( IEEE , 2009 , Conference Paper)In this paper, we propose several relay selection schemes for cooperative diversity systems with adaptive transmission. The proposed schemes are based on dual-hop relaying with multiple relays. We analyze the performance ... -
Coverage, Probability of SNR Gain, and DOR Analysis of RiS-Aided Communication Systems
Yang L.; Yang Y.; Hasna , Mazen; Alouini M.-S. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Recent studies have shown that reconfigurable Intelligent surfaces (RiSs) can help In extending the wireless coverage. However, no work has quantitatively analyzed the coverage. In this letter, we present the coverage ... -
End-to-end outage probability of multihop transmission over lognormal shadowed channels
Hasna, M.O.; Alouini, M.S. ( King Fahd University of Petroleum & Minerals , 2003 , Article)End-to-end outage probability evaluation of multihop wireless communication systems over lognormal shadowed channels is presented. Closed-form expression for the end-to-end signal to noise ratio of systems equipped with ... -
End-to-end performance of transmission systems with relays over Rayleigh-fading channels
Hasna , Mazen; Alouini M.-S. ( IEEE , 2003 , Article)End-to-end performance of two-hops wireless communication systems with nonregenerative relays over flat Rayleigh-fading channels is presented. This is accomplished by deriving and applying some new closed-form expressions ... -
Exact capture probability analysis of GSC receivers over Rayleigh fading channel
Nam S.S.; Alouini M.-S.; Hasna , Mazen ( IEEE , 2010 , Conference Paper)For third generation systems and ultrawideband systems, RAKE receivers have been introduced due to the advantage of RAKE receivers which is their ability to combine different replicas of the transmitted signal arriving at ... -
Exact closed form expressions for outage probability of GSC receivers over Rayleigh fading channel subject to self-interference
Nam S.S.; Hasna , Mazen; Alouini M.-S. ( IEEE , 2010 , Conference Paper)Previous work on performance analyses of generalized selection combining (GSC) RAKE receivers based on the signal to noise ratio focused on the development of methodologies to derive exact closed-form expressions for various ... -
Full-duplex relay selection in cognitive underlay networks
Khafagy M.G.; Alouini M.-S.; Aissa S. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)We analyze the outage and throughput performance of full-duplex relay selection (FDRS) in underlay cognitive networks. Contrary to half-duplex relaying, full-duplex relaying (FDR) enables simultaneous listening/forwarding ... -
Joint statistics of partial sums of ordered exponential variates and performance of GSC RAKE receivers over rayleigh fading channel
Nam S.S.; Hasna , Mazen; Alouini M.-S. ( IEEE , 2011 , Article)Spread spectrum receivers with generalized selection combining (GSC) RAKE reception were proposed and have been studied as alternatives to the classical two fundamental schemes: maximal ratio combining and selection combining ... -
Optimal power allocation for relayed transmissions over Rayleigh-fading channels
Hasna , Mazen; Alouini M.-S. ( IEEE , 2004 , Article)Relayed transmission is a way to attain broader coverage by splitting the communication link from the source to the destination into several shorter links/hops. One of the main advantages of this communication technique ... -
Outage analysis of selective cooperation in underlay cognitive networks with fixed gain relays and primary interference modeling
Hussain S.I.; Alouini M.-S.; Qaraqe K.; Hasna , Mazen ( IEEE , 2012 , Conference Paper)Selective cooperation is a well investigated technique in non-cognitive networks for efficient spectrum utilization and performance improvement. However, it is still a nascent topic for underlay cognitive networks. Recently, ... -
Partial relay selection in underlay cognitive networks with fixed gain relays
Hussain S.I.; Alouini M.-S.; Hasna , Mazen; Qaraqe K. ( IEEE , 2012 , Conference Paper)In a communication system with multiple cooperative relays, selecting the best relay utilizes the available spectrum more efficiently. However, selective relaying poses a different problem in underlay cognitive networks ... -
Performance analysis of best relay selection scheme for amplify-and-forward cooperative networks in identical Nakagami-m channels
Hussain S.I.; Alouini M.-S.; Hasna , Mazen ( IEEE , 2010 , Conference Paper)In cooperative communication networks, the use of multiple relays between the source and the destination was proposed to increase the diversity gain. Since the source and all the relays must transmit on orthogonal channels, ... -
Performance analysis of best relay selection scheme for fixed gain cooperative networks in non-identical Nakagami-m channels
Hussain S.I.; Hasna , Mazen; Alouini M.-S. ( IEEE , 2010 , Conference Paper)Selecting the best relay among all the relays ready to cooperate saves system resources and utilizes the available bandwidth more efficiently compared to the regular all-relay cooperation. This scheme also achieves the ... -
Performance analysis of selective cooperation in amplify-and-forward relay networks over identical Nakagami-m channels
Hussain S.I.; Alouini M.-S.; Hasna , Mazen ( Wiley Online Library , 2013 , Article)In cooperative communications, multiple relays between a source and a destination can increase the diversity gain. Because all the nodes must use orthogonal channels, multiple-relay cooperation becomes spectrally inefficient. ...