Results 211 to 220 of about 1,611 (240)

Sensitivity of Line-of-Sight Estimation to Measurement Errors in L-Shaped Antenna Arrays for 3D Localization for In-Orbit Servicing. [PDF]

Sensors (Basel)
Kirei BS, Rațiu V, Rațiu O.
europepmc   +1 more source

High-order direct modulation terahertz communications with a wideband time-coding metachip modulator. [PDF]

Sci Adv
Wang L, Dai JY, Ding KS, Zeng HX, Cheng Q, Yang ZQ, Zhang YX, Cui TJ.   +7 more
europepmc   +1 more source

Minimalist terahertz wireless transceiver in integrated photonics. [PDF]

Nat Commun
Guo Y, Zhang X, Zhang Y, Shen B, Wang L, Zhou P, Long T, Wang H, Yang L, Li M, Tao Z, Xiao X, He Z, Wang L, Chen B, Wang X, Shu H.   +16 more
europepmc   +1 more source

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Dispersion Matrix Optimization for Space-Time Shift Keying

IEEE Communications Letters, 2011
In this Letter, we introduce an efficient dispersion matrix optimization technique for the recent concept of Space Time Shift Keying (STSK). By exploiting the STSK-specific signal structure relying on the dispersion-matrix activation, rather than the classic spatial multiplexing, computational complexity imposed by the system optimization is reduced by
Shinya Sugiura
exaly   +2 more sources

Space–Time Frequency-Shift Keying

IEEE Transactions on Communications, 2004
Frequency-shift keying (FSK) is a popular modulation scheme in power-limited communication links. This paper introduces space-time FSK (ST-FSK), which does not require any channel state information at the transmitter and the receiver, as in conventional noncoherent FSK. ST-FSK can be viewed as a special unitary ST modulation design. However, ST-FSK has
Geert Leus, H Delic
exaly   +2 more sources

An Improved Matched-Filter Based Detection Algorithm for Space-Time Shift Keying Systems

IEEE Signal Processing Letters, 2012
In this letter, an extension of the near-optimal matched-filter (NMF) detector that provides improvement of the performance with negligible extra complexity is proposed for space-time shift keying (STSK) systems. In contrast to the NMF which only utilizes the index of the most probable active dispersion-matrix (DM) for detection, the proposed method ...
Yue Xiao
exaly   +2 more sources

Spatial Modulation and Space-Time Shift Keying: Optimal Performance at a Reduced Detection Complexity

IEEE Transactions on Communications, 2013
In this paper, we propose a comprehensive reduced-complexity detector both for hard-decision-aided as well as for the soft-decision-assisted Spatial Modulation (SM)/Space-Time Shift Keying (STSK). More explicitly, the detection of the SM scheme, which activates a single one out of M antennas to transmit a single LPSK/QAM symbol, may be carried out by ...
Chao Xu, Shinya Sugiura, Soon Ng
exaly   +3 more sources

Space-time coded ternary phase shift keying

Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint, 2004
This paper addresses the space-time coding (STC) in ternary phase shift keying (TPSK) for highly reliable wireless communications. TPSK has not been focused upon until now, although it has theoretically excellent features for mobile communication systems, that is, splendid error rate characteristics and minimum amplitude fluctuation among all of the ...
T. Koike, S. Yoshida
openaire   +1 more source