Results 21 to 30 of about 10,497 (216)

3D channel model in 3GPP [PDF]

IEEE Communications Magazine, 2015
Multi-antenna techniques capable of exploiting the elevation dimension are anticipated to be an important air-interface enhancement targeted to handle the expected growth in mobile traffic. In order to enable the development and evaluation of such multi-antenna techniques, the 3rd generation partnership project (3GPP) has recently developed a 3 ...
Bishwarup Mondal, Timothy A. Thomas, Eugene Visotsky, Frederick W. Vook, Amitava Ghosh, Young-Han Nam, Yang Li 0024, Jianzhong Charlie Zhang, Min Zhang, Qinglin Luo, Yuichi Kakishima, Koshiro Kitao   +11 more
openaire   +2 more sources

A Joint Modulation-Coding Scheme and Resource Allocation in LTE Uplink

Elektronika ir Elektrotechnika, 2020
In Long Term Evolution (LTE) Resource Allocation Algorithms (RAAs) are an area of work where researchers are seeking to optimize the efficient use of scarce radio resources.
Amado Gutierrez, Victor Rangel, Javier Gomez, Robert M. Edwards, David H. Covarrubias   +4 more
doaj   +1 more source

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

IET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh, Khaled F. Hayajneh, Haythem Bany Salameh, Raed Al Athamneh, Yaser Jararweh   +4 more
wiley   +1 more source

Overload Control for Signaling Congestion of Machine Type Communications in 3GPP Networks. [PDF]

PLoS ONE, 2016
Because of the limited resources on radio access channels of third generation partnership projection (3GPP) network, one of the most challenging tasks posted by 3GPP cellular-based machine type communications (MTC) is congestion due to massive requests ...
Zhaoming Lu, Qi Pan, Luhan Wang, Xiangming Wen   +3 more
doaj   +1 more source

Further mobility enhancements for 5G-advanced and beyond [PDF]

International Journal of Electronics and Telecommunications
The study on mobility is an inherent part of any generation of cellular technology. It is aimed at ensuring robust, reliable, and interruption-free handover of the mobile user connection.
Jedrzej Stanczak, Umur Karabulut, Ahmad Awada, Ali Karimidehkordi, Niko Kolehmainen, Alperen Gundogan   +5 more
doaj   +1 more source

Performance evaluation of hybrid ARQ schemes of 3GPP LTE OFDMA system [PDF]

, 2007
Expectations and requirements for future wireless communication systems continue to grow and evolve. Thus, recently, the Third Generation Partnership Project (3GPP) has considered the Long Term Evolution (LTE) of 3G - also known as Super 3G - to ensure ...
Beh, KC, Angela Doufexi, Doufexi, A, Armour, SMD, Simon Armour, Kian Chung Beh   +5 more
core   +1 more source

On the performance of SU-MIMO and MU-MIMO in 3GPP LTE downlink [PDF]

, 2009
LTE (Long Term Evolution) is a next major step in mobile radio communications, and will be introduced as Release 8 in the 3rd Generation Partnership Project (3GPP). The new evolution aims to reduce delays, improve spectrum flexibility and reduce cost for
Beh, KC, Angela Doufexi, Doufexi, A, Armour, SMD, Simon Armour, Kian Chung Beh   +5 more
core   +1 more source

Statistical LOS/NLOS Channel Model for Simulations of Next Generation 3GPP Networks

Elektronika ir Elektrotechnika, 2018
Understanding of line-of-sight and non-line-of-sight (LOS/NLOS) visibility conditions is important for radio wave propagation modeling when selecting empirical path loss model.
Rimvydas Aleksiejunas, Albert Cesiul, Kestutis Svirskas   +2 more
doaj   +1 more source

An analysis of the 3gpp-MAC scheme

Electronic Notes in Discrete Mathematics, 2001
Abstract Key recovery attacks are described on the 3gpp-MAC scheme, proposed for inclusion in the 3gpp specification. Three main attacks are given, all of which operate whether or not truncation is applied to the MAC value. The first type of attack uses a large number of ‘chosen MACs’, the second type of attack a large number of ‘known MACs’, whereas
Lars R. Knudsen, Chris J. Mitchell
openaire   +10 more sources

Multi-access, wireless and wired convergence architecture evolution and traffic scheduling mechanism

Dianxin kexue, 2022
In 3GPP Rel-16, 3GPP 5G network architecture defines the wireless and wired converged architecture, that is, fixed and mobile converged network architecture, focusing on multiple valuable scenarios of this converged architecture, where the wired and ...
Shufeng SHI, Youyang YU
doaj   +2 more sources