Results 221 to 230 of about 238,917 (261)
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IEEE Communications Letters, 2017
Multiple-access interference mitigation is important in code-division multiple-access (CDMA) systems for both information recovery and signal acquisition. Therefore, in this letter, we propose an open-loop adaptive filter based on the reiterative minimum mean-square error for the acquisition of CDMA signals.
Yuyao Shen +3 more
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Multiple-access interference mitigation is important in code-division multiple-access (CDMA) systems for both information recovery and signal acquisition. Therefore, in this letter, we propose an open-loop adaptive filter based on the reiterative minimum mean-square error for the acquisition of CDMA signals.
Yuyao Shen +3 more
openaire +1 more source
Multiple-access interference in time hopping ultrawideband radio
SPIE Proceedings, 2004A method is proposed for precisely analyzing the effects of the multiple access interference in the time-hopping ultra-wideband communication systems on the average symbol error rates. An exact analysis is derived for calculating the bit error probability of ultra-wideband systems operating in multiple access interference.
Norman C. Beaulieu, Bo Hu
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On random multiple access with unknown interference probabilities
1986 25th IEEE Conference on Decision and Control, 1986We consider the time slotted, packet switched, broadcast type random multiple access channel with infinite number of stations. Due to interference, some successful transmissions are erased, and some empty slots are erroneously interpreted as collisions.
Tzvi Shukhman, Adam Shwartz
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Tandem Spreading Multiple Access with Successive Interference Cancellation
2019 IEEE/CIC International Conference on Communications in China (ICCC), 2019Grant-free non-orthogonal multiple access (NOMA) is adopted to serve massive machine-type devices in massive machine-type communications (mMTC). One major challenge of the grant-free NOMA for mMTC is the collision induced by nonorthogonal resource allocation.
Zichao Wei +4 more
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Resource Allocation Strategy in Multiple Access Interference Channel
2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall), 2014Duality relations among achievable QoS parameters help us transform the problems in the broadcast channel to convex problems in multiple access channels. But a multiple access channel being considered as dual of a broadcast channel must exploit the additional freedom of power allocation traditionally considered only in a broadcast channel.
S. Barman Roy, A. S. Madhukumar
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2011
Dramatic growth rates in capacity demands in wireless and other broadband systems have resulted in a rise in the use of communication networks in which multiple users share common communication resources. A significant consequence of this trend is the increasing presence of multiple-access interference (MAI), which arises in communication systems ...
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Dramatic growth rates in capacity demands in wireless and other broadband systems have resulted in a rise in the use of communication networks in which multiple users share common communication resources. A significant consequence of this trend is the increasing presence of multiple-access interference (MAI), which arises in communication systems ...
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Link-optimal BLAST processing with multiple-access interference
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152), 2002Previous results in information theory have demonstrated the enormous capacity potential of wireless communication systems with multiple transmit and receive antennas. To exploit this potential, the Bell-laboratories LAyered Space-Time (BLAST) architecture was proposed.
F.R. Farrokhi +3 more
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Analysis of multiple-access interference for CDMA signals
2017 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus), 2017Methods of modern GNNS organization, their frequency bandwidth and signals generation were described. Nowadays bandwidth for every field of concern is strongly limited. Popularity of radionavigation leads to overlapping spectrum. Modern GNSS are using signals with CDMA to minimize interference.
Dmitriy V. Gayvoronskiy +1 more
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An interference analysis for packet reservation multiple access
Seamless Interconnection for Universal Services. Global Telecommunications Conference. GLOBECOM'99. (Cat. No.99CH37042), 2003This paper presents a cochannel interference analysis for the packet reservation multiple access (PRMA) protocol, based on a Markov modeling of the interference generation process. PRMA is one of the first packet switching protocols proposed for wireless personal communications and its performance in cellular environments has been studied with ...
G.D. Kondylis, G.J. Pottie
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Signaling system for multiple-access laser communications and interference protection
Applied Optics, 1993Signaling by spatial coding is proposed for asynchronous multiple-access free-space optical communications and interference mitigation. The large spatial bandwidth (e.g., 10(6) pixels) of each laser transmitter aperture is utilized for user coding, while the transmitter temporal bandwidth is preserved for information signals.
N A, Riza, J E, Hershey, A A, Hassan
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