Results 1 to 10 of about 238,917 (261)

Multiple access interference suppression for CDMA systems via ℓ∞-minimization [PDF]

open access: yesFundamental Research, 2022
A key problem in code-division multiple access (CDMA) system is to mitigate the multiple access interference (MAI) from other users while detecting the desired user.
Xue Jiang, Xingzhao Liu, T. Kirubarajan
doaj   +2 more sources

Multiple-Access Interference and Multipath Influence Mitigation for Multicarrier Code-Division Multiple-Access Signals

open access: yesIEEE Access, 2020
Sidelobe raising, caused by multipath and multiple-access interference (MAI), hinders the signal detection and time-delay estimation of multicarrier code-division multiple-access (MC-CDMA) signals, which are crucial for localization and tracking ...
Yuyao Shen, Ying Xu
doaj   +2 more sources

Low-complexity hybrid interference cancellation for sparse code multiple access

open access: yesEURASIP Journal on Wireless Communications and Networking, 2022
Sparse Code Multiple Access (SCMA) is one of Non Orthogonal Multiple Access (NOMA) candidates for 5G, the fifth generation mobile network. Multiple overlapped blocks of SCMA code are transmitted per frequency layer which compels the receiver to cancel ...
Bilal Ghani   +4 more
doaj   +2 more sources

Iterative Interference Cancellation for Time Reversal Division Multiple Access

open access: yesIEEE Access, 2023
Time Reversal (TR) has been proposed as a competitive precoding strategy for low-complexity devices, relying on ultra-wideband waveforms. This transmit processing paradigm can address the need for low power and low complexity receivers, which is ...
Ali Mokh   +6 more
doaj   +1 more source

INTERFERENCE CANCELLERS FOR SPREAD SPECTRUM MODULATION BASED MULTIPLE ACCESS SYSTEMS

open access: yesICTACT Journal on Communication Technology, 2021
Systems based on spread spectrum technique are inherently interference resistant. However, asynchronous transmission and multipath propagation causes manifestation of multiuser interference.
Monica Khanore, Srija Unnikrishnan
doaj   +1 more source

Cooperative Non-Orthogonal Multiple Access for Beyond 5G Networks

open access: yesIEEE Open Journal of the Communications Society, 2021
In the beyond 5G networks, extraordinary demands for data rates and capacity are to be met. A possible candidate to address these challenges is Non-Orthogonal Multiple Access (NOMA) technique, which leads to higher diversity gains and massive ...
Abbas Ahmed   +3 more
doaj   +1 more source

The Magic of Superposition: A Survey on Simultaneous Transmission Based Wireless Systems

open access: yesIEEE Access, 2022
In conventional communication systems, any interference between two communicating points is regarded as unwanted noise since it distorts the received signals.
Ufuk Altun   +2 more
doaj   +1 more source

Rate-splitting multiple access for downlink communication systems: bridging, generalizing, and outperforming SDMA and NOMA

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Space-division multiple access (SDMA) utilizes linear precoding to separate users in the spatial domain and relies on fully treating any residual multi-user interference as noise. Non-orthogonal multiple access (NOMA) uses linearly precoded superposition
Yijie Mao, Bruno Clerckx, Victor O.K. Li
doaj   +1 more source

Multiple-Antenna Interference Cancellation for WLAN with MAC Interference Avoidance in Open Access Networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
The potential of multiantenna interference cancellation receiver algorithms for increasing the uplink throughput in WLAN systems such as 802.11 is investigated.
Kuzminskiy Alexandr M, Karimi HamidReza
doaj   +2 more sources

Power allocation over time‐varying multiple‐access interference channels [PDF]

open access: yesInternational Journal of Communication Systems, 2016
SummaryIn this paper, power allocation over time‐varying multiple‐access interference channels is studied. Particularly, stochastic network sum‐rate maximizing and max‐min rate power allocation, and total power minimization problems are formulated, capturing the random nature of communication channels.
Baidas, Mohammed W.   +2 more
openaire   +1 more source

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