Results 91 to 100 of about 74,234 (189)

Enhanced Handoff Scheme for Downlink-Uplink Asymmetric Channels in Cellular Systems

The Scientific World Journal, 2013
In the latest cellular networks, data services like SNS and UCC can create asymmetric packet generation rates over the downlink and uplink channels. This asymmetry can lead to a downlink-uplink asymmetric channel condition being experienced by cell edge ...
Sunghyun Cho, Ji-Su Kim, Jae-Hyun Kim
doaj   +1 more source

In Situ Assessment of Uplink Duty Cycles for 4G and 5G Wireless Communications

Sensors
In this presented study, we measured in situ the uplink duty cycles of a smartphone for 5G NR and 4G LTE for a total of six use cases covering voice, video, and data applications.
Günter Vermeeren, Leen Verloock, Sam Aerts, Luc Martens, Wout Joseph   +4 more
doaj   +1 more source

Nexcode: Next Generation Uplink Coding Techniques

, 2016
Grant numbers : NEXCODE (Next Generation Uplink Coding Techniques)© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or ...
Baldi, M, Bertinelli, M, Chiaraluce, F, Closas, P, Garello, R, Maturo, N, Navarro, M, Palomo, JM, Paolini, E, Pfletschinger, S, Silva, PF, Simone, L, Vila-Valls, J   +12 more
openaire   +3 more sources

Mechanism of joint physical layer and MAC layer for handling multi-TRP UL overlapping transmissions

Tongxin xuebao
To address the severe uplink (UL) overlapping transmission problem caused by multi-timing advance (multi-TA) in multiple transmission reception point (multi-TRP) scenario with non-ideal feedback, where existing protocols were difficult to handle ...
JING Xiaorong, XIONG Jie, SUN Jian, CHEN Qianbin   +3 more
doaj  

Research on Performance of Covert Wireless Communication over Uplink LEO Satellite-Terrestrial Network

天地一体化信息网络
The deployment of large-scale LEO satellite constellations is rapidly advancing, enabling seamless global coverage and supporting a wide range of applications.However, this proliferation of satellites also brings significant security concerns, including ...
ZENG Shulei, CAO Bin
doaj  

Unsupervised Neural Beamforming for Uplink MU-SIMO in 3GPP-Compliant Wireless Channels. [PDF]

Sensors (Basel)
Vahapoglu C, O'Shea TJ, Liu W, Roy T, Ulukus S.   +4 more
europepmc   +1 more source

Deep reinforcement learning framework for joint optimization of multi-RAT UAV location and user association in heterogeneous networks. [PDF]

Sci Rep
Anany MG, Elmesalawy MM, Abd El-Haleem AM, Ibrahim II.   +3 more
europepmc   +1 more source

Superimposed CSI Feedback Assisted by Inactive Sensing Information. [PDF]

Sensors (Basel)
Zhang M, Jiang H, Wang Z, He L, Yang Y, Ye M, Qing C.   +6 more
europepmc   +1 more source

On the performance of uplink D2D-assisted backscatter employing short packet communication. [PDF]

PLoS One
Le SP, Minh BV, Sy VQ, Voznak M.
europepmc   +1 more source

Joint beamforming and transmit power control for maximizing uplink communication rate of active IRS-assisted ISAC system. [PDF]

Sci Rep
Wang J, Lu S.
europepmc   +1 more source