Results 51 to 60 of about 629,506 (349)
Study of radio resource sharing for future mobile WiMAX applications with relays [PDF]
, 2007 WiMAX (802.16e) is technically capable of offering city-wide broadband connections to a high number of mobile terminals. The technology has strong industrial support, however a number of challenges remain to be resolved.
Bian, YQ, Nix, AR, Strauch, P, Sun, Y
core +3 more sources
Advanced Engineering Materials, EarlyView.The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza +3 more
wiley +1 more source
The Front end of Software-Defined Radio: Possibilities and Challenges [PDF]
, 2001 The use of mobile telephony has shown a spectacular\ud growth in the last 10 years. A side effect of this rapid\ud growth is an excess of mobile system standards.
Hoeksema, F.W. +2 more
core +4 more sources
Advanced Functional Materials, EarlyView.PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu +14 more
wiley +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
IEEE Access, 2019 This paper describes an innovative approach to radio channel characterization in UMTS and LTE mobile networks. In place of traditional drive tests (DT), which employ a single test mobile, a massive collection of georeferenced radio measurements is made ...
Andrea Scaloni +4 more
doaj +1 more source
Mobile Audiovisual Terminal: System Design and Subjective Testing in DECT and UMTS networks [PDF]
, 2000 It is anticipated that there will shortly be a requirement for multimedia terminals that operate via mobile communications systems. This paper presents a functional specification for such a terminal operating at 32 kb/s in a digital European cordless
Cosmas, J, Gill, D, Pearmain, A
core +1 more source
Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films
Advanced Functional Materials, EarlyView.The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram +2 more
wiley +1 more source
Voice scrambling for radio, cellular and telephone systems [PDF]
, 1992 An overview of the requirements of a scrambler for use with mobile radio equipment is presented. Details of the implementation of a scrambler are given satisfying these requirements.
Bateman, A, Marvill, JD, McGeehan, JP
core +2 more sources
Advanced Functional Materials, EarlyView.A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar +8 more
wiley +1 more source