Results 21 to 30 of about 229,527 (307)
Non‐orthogonal multiple access without channel state information for similar channel conditions
A downlink non‐orthogonal multiple access with QPSK input constellations based on virtual channel optimisation is presented to address the similar channel conditions scenario.
Wenlong Xia +3 more
doaj +1 more source
Analysis of factors affecting the operation of the communication system with nonorthogonal multiple access [PDF]
NOMA is a group of non-orthogonal multiple access methods [1]. In this article, we talk about the Power Domain (Division) NOMA method. It is a non-orthogonal multiple access method with channel separation by power [2].
Rogozhnikov Eugeniy +4 more
doaj +1 more source
Asynchronous multiple-access channel capacity [PDF]
The capacity region for the discrete memoryless multiple-access channel without time synchronization at the transmitters and receivers is shown to be the same as the known capacity region for the ordinary multiple-access channel. The proof utilizes time sharing of two optimal codes for the ordinary multiple-access channel and uses maximum likelihood ...
Cover, Thomas M. +2 more
openaire +1 more source
Polar Coding for the Multiple Access Channel With Confidential Messages
The multiple access channel with confidential messages (MAC-CM) generalizes the traditional multiple access channel by allowing both users to receive channel outputs.
Haowei Wang +3 more
doaj +1 more source
Non-orthogonal multiple access (NOMA) is a multiple access technology that can provide efficient spectrum utilization and increased channel capacity on Internet of Things (IoT) networks.
Rummi Sirait +2 more
doaj +1 more source
The Poisson multiple-access channel [PDF]
The Poisson multiple-access channel (MAC) models many-to-one optical communication through an optical fiber or in free space. For this model we compute the capacity region for the two-user case as a function of the allowed peak power. Focusing on the maximum throughput we generalize our results to the case where the users are subjected to an additional
A. Lapidoth, S. Shamai
openaire +1 more source
Channel Allocation for Connected Vehicles in Internet of Things Services
Based on the existing Internet of Vehicles communication protocol and multi-channel allocation strategy, this paper studies the key issues with vehicle communication.
Ahmed Abdulhakim Al-Absi +3 more
doaj +1 more source
ZF-SIC Based Individual Secrecy in SIMO Multiple Access Wiretap Channel
In this paper, a decoding method of joint zero-forcing and successive interference cancellation (ZF-SIC) is put forward to assist the study of the individual secrecy in the quasi-static Rayleigh fading single-input multiple-output multiple access wiretap
Kaiwei Jiang +4 more
doaj +1 more source
Optimizing Information Freshness in a Multiple Access Channel With Heterogeneous Devices
In this work, we study age-optimal scheduling with stability constraints in a multiple access channel with two heterogeneous source nodes transmitting to a common destination.
Zheng Chen +3 more
doaj +1 more source
Novel half-duplex relay strategy and its resource allocation
Conventional time-division half-duplex relay strategies based on amplify-and-forward or decode-and-forward strategy could relieve relay nodes from full-duplex requirement but lead to degraded spectrum efficiency.
LI Yong +3 more
doaj +2 more sources

