Results 41 to 50 of about 980,180 (287)

Multiple access interference rejection code: LS code

open access: yesJournal of Communications and Networks, 2003
A new code, LS code, was proposed for the IMT-2000 CDMA system. The code has special properties during a specific time interval: 1) perfect autocorrelation, and 2) perfect crosscorrelation. Perfect autocorrelation means maximum autocorrelation for zero time-offset and zero autocorrelation for all other times during a specific time interval.
Dong Wook Roh, Dong Ku Kim
openaire   +1 more source

Interference mitigation for non-orthogonal multiple access in heterogeneous networks

open access: yesWireless Networks, 2023
Non-orthogonal multiple access (NOMA) technique is a promising alternative for enhancing network sum-rate while increasing the interference experienced by the users. In heterogeneous networks, the signal of a NOMA user is affected by three types of interference; intra-cell, inter-cell, and inter-tier.
Can Altay, Mutlu Koca
openaire   +2 more sources

Heuristic Radio Resource Management for Massive MIMO in Satellite Broadband Communication Networks

open access: yesIEEE Access, 2021
The advent of technologies allowing the implementation of flexible satellite payloads is opening up great opportunities to efficiently cope with non-uniform traffic conditions.
Piero Angeletti, Riccardo De Gaudenzi
doaj   +1 more source

Time-Reversal Routing for Dispersion Code Multiple Access (DCMA) Communications [PDF]

open access: yes, 2017
We present the modeling and characterization of a time-reversal routing dispersion code multiple access (TR-DCMA) system. We show that this system maintains the low complexity advantage of DCMA transceivers while offering dynamic adaptivity for practial ...
Caloz, Christophe, Zou, Lianfeng
core   +2 more sources

On the Optimality of Treating Inter-Cell Interference as Noise in Uplink Cellular Networks [PDF]

open access: yes, 2019
In this paper, we explore the information-theoretic optimality of treating interference as noise (TIN) in cellular networks. We focus on uplink scenarios modeled by the Gaussian interfering multiple access channel (IMAC), comprising $K$ mutually ...
Clerckx, Bruno, Joudeh, Hamdi
core   +2 more sources

Compound Multiple Access Channel with common message and intersymbol interference [PDF]

open access: yes6th International Symposium on Telecommunications (IST), 2012
5 pages, 2 figures, This paper is presented at the International Symposium on Telecommunications (IST)
Mostafa Monemizadeh   +3 more
openaire   +2 more sources

Multiple Access Techniques for Bipolar Optical Code Division in Wireless Optical Communications

open access: yesIEEE Access, 2020
In this paper, multiple access techniques for bipolar optical code division are proposed for application in wireless optical communications. First, several fiber Bragg gratings (FBGs) and optical circulators are used to encode optical signals.
Hsu-Chih Cheng   +4 more
doaj   +1 more source

The Kalman Filtering Blind Adaptive Multi-user Detector Based on Tracking Algorithm of Signal Subspace

open access: yesInformation, 2015
Multi-user detection is an effective method to reduce multiple access interference in code division multiple access (CDMA) systems. This paper discusses a signal subspace based blind adaptive multiuser detector and a Kalman filtering blind adaptive ...
Liqing Zhou   +5 more
doaj   +1 more source

Joint power control and user grouping for uplink power domain non-orthogonal multiple access

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Orthogonal multiple access schemes based on assignment of communication resource blocks among multiple contenders, although widely available, still necessitate an upper limit on the number of concurrent users for minimization of multiple-user ...
Bilal Ur Rehman   +6 more
doaj   +1 more source

Polar coding for interference networks

open access: yes, 2014
A polar coding scheme for interference networks is introduced. The scheme combines Arikan's monotone chain rules for multiple-access channels and a method by Hassani and Urbanke to 'align' two incompatible polarization processes.
Sasoglu, Eren, Wang, Lele
core   +1 more source

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