Results 91 to 100 of about 49,554 (306)

Performance of multiple amplitudes differential space-time block coding scheme concatenated with channel coding

Tongxin xuebao, 2007
By introducing multiple levels quadrature amplitude modulation and matrix transform method,a multiple am-plitudes differential space-time coding（DSTC） scheme was developed.The scheme can avoid the performance loss of conventional DSTC schemes based on ...
YU Xiang-bin1, ZHANG Sheng-nan1, BI Guang-guo2   +2 more
doaj  

Theoretical Design of Mimo Transceiver and Implementation Its Transmitter Using Fpga

Diyala Journal of Engineering Sciences, 2014
The use of multiple transmit and receive antennas (MIMO system) is widely accepted in recent years, as a promising technology for future wireless communication, to achieve higher data rates independently of transmission power and bandwidth, with improve
Khalid Awaad Humood, ADHAM HADI SALEH , WA’IL A. H. HADI   +2 more
doaj   +1 more source

Decreased cold‐sensing function of the transient receptor potential channel TRPM8 from tailed amphibians

FEBS Open Bio, EarlyView.
Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao, Daiki Kobayashi, Shogo Hori, Osamu Saitoh   +3 more
wiley   +1 more source

Analysis of Serial Search Based Code Acquisition in Multiple Transmit Antenna Aided DS-CDMA Downlink

, 2005
In this contribution we investigate the serial search based initial code acquisition performance of DSCDMA employing multiple transmit antennas both with and without Post-Detection Integration (PDI), when communicating over uncorrelated Rayleigh channels.
Won, S-H., Hanzo, L.
core  

Laboratory measurement campaign of DVB-T signal with transmit delay diversity

, 2008
The requirements for future DVB-T/H networks demand that broadcasters design and deploy networks that provide ubiquitous reception in challenging indoors and other obstructed situations.
Nilavalan, Rajagopal, Krishnapillai, K, Shirazi, Hamidreza, Bard, Maurice, Loo, Kok-Keong, Krishnapillai, K., Zhang, Y, Shirazi, H, Bard, M., Nilavalan, R., Di Bari, Raffaele, Nilavalan, R, Loo, KK, Zhang, Yue, Cosmas, John, Shirazi, H., Nasr, KM, Cosmas, J, Nasr, Karim Medhat, Krishnapillai, Kannan, Di Bari, R., Di Bari, R, Bard, M, Nasr, K.M.   +23 more
core   +1 more source

Initial and Post-Initial Code Acquisition in the Non-Coherent Multiple Input/Multiple Output Aided DS-CDMA Downlink [PDF]

, 2008
In this paper, we investigate the issues of both initial and post-initial acquisition schemes in the multiple-input/multiple-output (MIMO)-aided direct-sequence code-division multiple-access (DS-CDMA) downlink when communicating over spatially ...
Won, Seung, Won, SeungHwan, Hanzo, Lajos
core   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

A study of performance and complexity for IEEE 802.11n MIMO-OFDM GIS solutions [PDF]

, 2004
This paper investigates the point-to-point PHY layer performance of two newly proposed IEEE 802.11n candidate solutions by suggesting extensions to 802.11a.
Nix, AR, Fletcher, PN, P.N. Fletcher, A.R. Nix, Abdul Aziz, MK, M.K.A. Aziz   +5 more
core   +1 more source

Blind interference suppression for MC-CDMA system with transmit diversity

Tongxin xuebao, 2005
Blind interference suppression for multicarrier CDMA （MC-CDMA） system was investigated, in which space-time block coding based transmit diversity was used.
HU Bing, LI Ping-an, YU Bian-zhang
doaj   +2 more sources

Adaptive Space-Time-Spreading-Assisted Wideband CDMA Systems Communicating over Dispersive Nakagami- Fading Channels

EURASIP Journal on Wireless Communications and Networking, 2005
In this contribution, the performance of wideband code-division multiple-access (W-CDMA) systems using space-time-spreading- (STS-) based transmit diversity is investigated, when frequency-selective Nakagami- fading channels, multiuser interference ...
Yang Lie-Liang, Hanzo Lajos
doaj