Results 11 to 20 of about 1,274,526 (289)

A Novel training-based MIMO channel estimation scheme for layered space-time systems in frequency selective wireless channels [PDF]

open access: yes, 2009
New development in wireless technology using multiple antennas with appropriate space-time processing has recently become the new frontier of wireless communication systems due to the potential for providing very high spectral efficiency and enormous ...
Siyau, Ming F.
core   +7 more sources

Exact BER of Rectangular-Constellation QAM Subjected to Asynchronous Co-Channel Interference and Nakagami-m Fading [PDF]

open access: yes, 2006
The exact average bit error ratio (BER) of the rectangular quadrature amplitude modulation (QAM) constellation is studied in the context of asynchronous co-channel interference (CCI) and Nakagami-m fading.
Liu, X.   +3 more
core   +1 more source

Impact of Imperfect Channel State Information on RS Coding Aided Hybrid-ARQ in Rayleigh Fading Channels [PDF]

open access: yes, 2010
Hybrid Automatic-Repeat-reQuest (ARQ) schemes are capable of maintaining reliable communications for transmission over hostile wireless channels. In coherent detection aided schemes, the achievable performance substantially depends on the accuracy of ...
H. A. Ngo   +3 more
core   +1 more source

Kalman interpolation filter for channel estimation of LTE downlink in high-mobility environments [PDF]

open access: yes, 2012
The estimation of fast-fading LTE downlink channels in high-speed applications of LTE advanced is investigated in this article. In order to adequately track the fast time-varying channel response, an adaptive channel estimation and interpolation ...
Dai, Xuewu   +14 more
core   +2 more sources

Wideband Fading Channels With Feedback [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
The Rayleigh flat fading channel at low SNR is considered. With full channel state information (CSI) at the transmitter and receiver, its capacity is shown to be essentially SNR log(1SNR) nats/symbol, as SNR goes to zero. In fact, this rate can be achieved with a just one bit of CSI at the transmitter (per fading realization) and with no receiver CSI ...
Borade, Shashi, Zheng, Lizhong
openaire   +4 more sources

Closed-form Distribution and Analysis of a Combined Nakagami-lognormal Shadowing and Unshadowing Fading Channel

open access: yesJournal of Telecommunications and Information Technology, 2016
The realistic wireless channels face combined (time shared) Nakagami-lognormal shadowing and unshadowing fading because of time varying nature of radio channel and mobile user.
Rupender Singh, Meenakshi Rawat
doaj   +1 more source

Model of microwave link channel with adaptive modulation under the fading conditions [PDF]

open access: yesE3S Web of Conferences, 2022
Higher throughput requirements of the radio access network (RAN) of 5th generation (5G) network lead in turn to even more higher capacity require-ments of wireless backhaul segment.
Stepanets Irina, Odoevskii Sergei
doaj   +1 more source

The Streaming-DMT of Fading Channels [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
We consider the sequential transmission of a stream of messages over a block-fading multi-input-multi-output (MIMO) channel. A new message arrives at the beginning of each coherence block, and the decoder is required to output each message sequentially, after a delay of $T$ coherence blocks.
Ashish Khisti, Stark C. Draper
openaire   +3 more sources

A multiuser, multicarrier link adaptation atrategy for fading channels with PER constraints [PDF]

open access: yes, 2011
Link Adaptation can dynamically adjust a number of transmission parameters, most often modulation and coding, to reflect the characteristics of the wireless link to improve throughput and maintain link reliability.
M. Nicolaou   +7 more
core   +1 more source

Interference Aspects of Adaptive Modems over Slow Rayleigh Fading Channels

open access: yes, 1999
Adaptive modulation can achieve channel capacity gains by adapting the number of bits per transmission symbol on a burst-by-burst basis, in harmony with channel quality fluctuations. This is demonstrated in the paper for target bit error rates of 1 and 0.
J.M. Torrance   +5 more
core   +2 more sources

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