Results 11 to 20 of about 157 (142)
Improving Capacity in LMDS Networks Using Trellis-Coded Modulation
Local multipoint distribution systems (LMDS), which are operating worldwide in the frequency range of 26 to 43 GHz, have large bandwidths of 0.1 up to 2 GHz but a limited area coverage of a few kilometers only.
Bose Ranjan
doaj +2 more sources
M-PSK Cooperative Trellis Codes for Coordinate Interleaved Coded Cooperation
M-PSK cooperative trellis codes are proposed for two-user coordinate interleaved coded cooperation operating over quasistatic Rayleigh fading channels.
Özgür Oruç +1 more
doaj +2 more sources
New Trellis Code Design for Spatial Modulation
Spatial modulation (SM), in which multiple antennas are used to convey information besides the conventional M-ary signal constellations, is a new multiple-input multiple-output (MIMO) transmission technique, which has recently been proposed as an alternative to V-BLAST (vertical Bell Labs layered space-time).
Basar, Ertugrul +3 more
openaire +4 more sources
Space-Time Turbo Trellis Coded Modulation for Wireless Data Communications
This paper presents the design of space-time turbo trellis coded modulation (ST turbo TCM) for improving the bandwidth efficiency and the reliability of future wireless data networks.
Welly Firmanto +3 more
doaj +1 more source
Combined Source-Channel Coding of Images under Power and Bandwidth Constraints
This paper proposes a framework for combined source-channel coding for a power and bandwidth constrained noisy channel. The framework is applied to progressive image transmission using constant envelope M-ary phase shift key (M-PSK) signaling over an ...
Marc Fossorier +2 more
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Modified SNR Gap Approximation for Resource Allocation in LDPC-Coded Multicarrier Systems
The signal-to-noise ratio (SNR) gap approximation provides a closed-form expression for the SNR required for a coded modulation system to achieve a given target error performance for a given constellation size. This approximation has been widely used for
Adriaan Suls +3 more
doaj +1 more source
In this paper, a low-density parity check (LDPC) coded GFDM with high-level modulation scheme is proposed for more flexible and advanced multicarrier modulation in intensity-modulated/direct-detection (IM/DD) optical systems.
Dong Guo +10 more
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Spectral Efficiency Improved 2D-PAM8 Trellis Coded Modulation for Short Reach Optical System
This paper proposes and demonstrates a 31.25 Gbps two-dimensional eight level pulse amplitude modulation with trellis coded modulation (2D-PAM8-TCM) transmission in intensity modulation and direct detection based short reach system. In this system,
Yan Fu +5 more
doaj +1 more source
CG-SCMA Codebook Design Based on Maximized Euclidian Distance
Sparse code multiple access (SCMA) is a multi-dimensional codebook based on a class of non-orthogonal multiple access (NOMA) technologies enabling the delivery of non-orthogonal resource elements to numerous users in 5G wireless communications without ...
Sura S. Mohamed, Hikmat N. Abdullah
doaj +1 more source
Space-Time Turbo Coded Modulation: Design and Applications
A design method for recursive space-time trellis codes and parallel-concatenated space-time turbo coded modulation is proposed that can be applied to an arbitrary existing space-time trellis code.
Tujkovic Djordje +2 more
doaj +1 more source

