Results 11 to 20 of about 373,430 (258)

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

Low-Complexity Self-Interference Cancellation for Multiple Access Full Duplex Systems

open access: yesSensors, 2022
Self-interference occurs when there is electromagnetic coupling between the transmission and reception of the same node; thus, degrading the RX sensitivity to incoming signals.
Shachar Shayovitz   +2 more
doaj   +1 more source

Capacity bounds for multiple access-cognitive interference channel [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
Motivated by the uplink scenario in cellular cognitive radio, this study considers a communication network in which a point-to-point channel with a cognitive transmitter and a Multiple Access Channel (MAC) with common information share the same medium and interfere with each other.
Mahtab Mirmohseni   +2 more
openaire   +1 more source

CSNOMA: Carrier Sense Non-Orthogonal Multiple Access

open access: yesSensors, 2020
In this paper, we investigate the possibility of the cross-layer design of a distributed random access scheme with considering physical (PHY) and multiple access control (MAC) layers, which utilizes the interference cancellation technique. In this regard,
Dong Min Kim, Seong-Lyun Kim
doaj   +1 more source

Soft Interference Cancellation for Random Coding in Massive Gaussian Multiple-Access

open access: yesEntropy, 2021
In 2017, Polyanskiy showed that the trade-off between power and bandwidth efficiency for massive Gaussian random access is governed by two fundamentally different regimes: low power and high power. For both regimes, tight performance bounds were found by
Ralf R. Müller
doaj   +1 more source

Proposal of multiple access FMCW radar for inter-radar interference avoidance

open access: yesThe Journal of Engineering, 2019
Inter-radar interference will be a crucial problem when a number of frequency modulated continuous wave (FMCW) radars are densely deployed in future, since it can cause miss detection and false detection of the target due to wideband interference and ...
Mikihiro Kurosawa   +5 more
doaj   +1 more source

Time-Hopping Multiple-Access for Backscatter Interference Networks [PDF]

open access: yesGLOBECOM 2017 - 2017 IEEE Global Communications Conference, 2017
Future Internet-of-Things (IoT) is expected to wirelessly connect tens of billions of low- complexity devices. Extending the finite battery life of massive number of IoT devices is a crucial challenge. The ultra-low-power backscatter communications (BackCom) with the inherent feature of RF energy harvesting is a promising technology for tackling this ...
Wanchun Liu   +3 more
openaire   +1 more source

A Multiuser Detection Algorithm in the Uplink SC-FDMA System for Green Communication Network

open access: yesIEEE Access, 2016
The Single-carrier Frequency-Division Multiple Access (SC-FDMA) communication scheme is the key technique in green communications and networking for 5G for the uplink of SC-FDMA multiuser systems due to frequency differences introducing access ...
Peng Bao, Qingyang Guan, Mingxiang Guan
doaj   +1 more source

Multiple Access Outerbounds and the Inseparability of Parallel Interference Channels [PDF]

open access: yesIEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference, 2008
It is known that the capacity of parallel (multi-carrier) Gaussian point-to-point, multiple access and broadcast channels can be achieved by separate encoding for each subchannel (carrier) subject to a power allocation across carriers. In this paper we show that such a separation does not apply to parallel Gaussian interference channels in general.
Viveck R. Cadambe, Syed Ali Jafar
openaire   +2 more sources

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