Results 81 to 90 of about 232,767 (181)
ISPRS International Journal of Geo-Information, 2016 In pervasive computing, location-based services (LBSs) are valuable for mobile clients based on their current locations. LBSs use spatial window queries to enable useful applications for mobile clients.
Jun-Hong Shen +3 more
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Fundamental Limits of Non-Orthogonal Multiple Access (NOMA) for the Massive Gaussian Broadcast Channel in Finite Block-Length. [PDF]
Sensors (Basel), 2021 Gorce JM, Mary P, Anade D, Kélif JM.
europepmc +1 more source
Novel half-duplex relay strategy and its resource allocation
Tongxin xuebao, 2009 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
Strong Secrecy for Cooperative Broadcast Channels
IEEE Transactions on Information Theory, 2017 International Zurich Seminar on Communications ...
Ziv Goldfeld +3 more
openaire +3 more sources
Relativistic quantum broadcast channel
Physical Review D15 pages, 1 figure, Accepted for Publication in ...
Ian Bernardes Barcellos +1 more
openaire +2 more sources
Trustworthy Remote Identification and Capacity Analysis for High‑Density Low‑Altitude UAV Safety
Shuju Caiji Yu ChuliWith the rapid development of the low‑altitude economy in China， the low‑altitude airspace is characterized by massive device connectivity and intensive spectrum utilization， posing significant challenges to the real‑time safety supervision of unmanned ...
SUN Hancun, BAI Zixuan, XU Jin, GE Ning
doaj +1 more source
Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels
Tongxin xuebao, 2006 Since it is very difficult to compute the sum rates capacity of Gaussian MIMO broadcast channels directly by using dirty paper coding approach,an iterative water-filling algorithm is proposed to obtain the sum capacity bound for multi-access channel and ...
PAN Cheng-kang1 +3 more
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A note on the wideband Gaussian broadcast channel [PDF]
It is well known that for the Gaussian broadcast channel, timeshared coding is not as efficient as more sophisticated broadcast coding strategies. However, the relative advantage of broadcast coding over timeshared coding is shown to be small if the ...
Mceliece, R. J. +2 more
core +1 more source
PhantomNet: Exploring Optimal Multicellular Multiple Antenna Systems
EURASIP Journal on Advances in Signal Processing, 2004 We present a network framework for evaluating the theoretical performance limits of wireless data communication. We address the problem of providing the best possible service to new users joining the system without affecting existing users.
Foschini Gerard J +2 more
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On the Delay-Energy Tradeoff in Multiuser Fading Channels
EURASIP Journal on Wireless Communications and Networking, 2009 We consider the delay-energy tradeoff on a fading channel with multiuser diversity. For fixed arbitrary rates of the users, the total transmitted energy is minimized subject to a delay constraint. To achieve this goal we propose a scheme which schedules
Chaporkar Prasanna +2 more
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