Results 11 to 20 of about 508,076 (233)

MULTIPATH FADING EFFECTS ON UNCODED AND CODED MULTIPLE FREQUENCY SHIFT KEYING PERFORMANCE IN MOBILE WIRELESS COMMUNICATIONS [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
This paper presents an analysis of multipath fading channel effects on the performance of multiple frequency shift keying (MFSK) modulation that is used in mobile wireless communications.
Hassan Awheed Jeiad   +1 more
doaj   +2 more sources

On Fast-Decodable Space-Time Block Codes [PDF]

open access: yes2008 IEEE International Zurich Seminar on Communications, 2008
submitted to IEEE trans ...
Biglieri, Ezio   +2 more
openaire   +3 more sources

Space-Time Block Coding-Based Beamforming for Beam Squint Compensation [PDF]

open access: yesIEEE Wireless Communications Letters, 2018
In this letter, the beam squint problem, which causes significant variations in radiated beam gain over frequencies in a millimeter wave communication system, is investigated.
Ximei Liu, Deli Qiao
semanticscholar   +1 more source

Omnidirectional Space-Time Block Coding for Common Information Broadcasting in Massive MIMO Systems [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2016
In this paper, we design space-time block codes (STBCs) to broadcast the common information omnidirectionally in a massive multiple-input multiple-output downlink.
Xin Meng, X. Xia, Xiqi Gao
semanticscholar   +1 more source

Space-Time Block Coded Cooperative MIMO Systems [PDF]

open access: yesSensors, 2020
The main objective of a Cooperative Multiple-Input Multiple-Output (CMIMO) system is to improve network throughput and network coverage and save energy. By grouping wireless devices as virtual multi-antenna nodes, it can thus simulate the functions of multi-antenna systems. A Space-Time Block Code (STBC) was proposed to utilize the spatial diversity of
Han Hai   +5 more
openaire   +3 more sources

Space-Time/Frequency Line Coded OFDM: System Design and Practical Implementation

open access: yesIEEE Access, 2019
In this paper, we investigate a class of new multiple-input multiple-output (MIMO) transmission schemes, dubbed space time line code (STLC), in the context of different mobility situations.
Chaowu Wu   +5 more
doaj   +1 more source

Space-time coding for UMTS. Performance evaluation in combination with convolutional and turbo coding [PDF]

open access: yes, 2000
Space-time codes provide both diversity and coding gain when using multiple transmit antennas to increase spectral efficiency over wireless communications systems.
Gaspa Maynou, Roger   +1 more
core   +1 more source

Performance Analysis of Repetition-Coding and Space-Time-Block-Coding as Transmitter Diversity Schemes for Indoor Optical Wireless Communications

open access: yesJournal of Lightwave Technology, 2019
The benefits of 2 × 1 multiple-inputs-single-output scheme for transmitter diversity in the infrared indoor optical wireless communication link are theoretically investigated.
Tingting Song   +7 more
semanticscholar   +1 more source

KOMBINASI ORTHOGONAL SPACE TIME BLOCK CODING DAN BLOCK CHANNEL CODING UNTUK MENINGKATKAN KINERJA SISTEM ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING

open access: yesTeknologi dan Kejuruan, 2012
It is well known that space-time diversity using space-time coding (STC) is an effective technique to improve wireless communication performance. STC was designed for flat fading channel and consist of space-time trellis code (STTC) and space-time block ...
Muladi Muladi
doaj   +1 more source

Adaptive Network Coding for Scheduling Real-time Traffic with Hard Deadlines [PDF]

open access: yes, 2012
We study adaptive network coding (NC) for scheduling real-time traffic over a single-hop wireless network. To meet the hard deadlines of real-time traffic, it is critical to strike a balance between maximizing the throughput and minimizing the risk that ...
Li, Jason Hongjun   +3 more
core   +1 more source

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