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» Adaptive Coded Modulation for Fading Channels
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VTC
2007
IEEE
142views Communications» more  VTC 2007»
14 years 1 months ago
Iterative Demodulation and Decoding for Rotated MPSK Constellations with Convolutional Coding and Signal Space Diversity
— Signal space diversity (SSD) with the rotation of the signal constellation using multi-level modulation schemes is known to provide good performance gains over fading channels....
Nauman F. Kiyani, Jos H. Weber
ICC
2007
IEEE
14 years 1 months ago
Probability Density Functions of Reliability Metrics for 16-QAM-Based BICM Transmission in Rayleigh Channel
— In bit interleaved coded modulation (BICM), the probability density function (PDF) of the reliability metrics (Lvalues) fully defines the BICM transmission and may be used to ...
Leszek Szczecinski, Alex Alvarado, Rodolfo Feick
GLOBECOM
2009
IEEE
14 years 2 months ago
Rate Adaptation with NAK-Aided Loss Differentiation in 802.11 Wireless Networks
—The Physical Layer of the IEEE 802.11 standard family provides a set of different modulation and coding schemes and, thus, a multitude of data rates. However, the Standard itsel...
Anne N. Ngugi, Yuanzhu Peter Chen, Qing Li
VTC
2007
IEEE
125views Communications» more  VTC 2007»
14 years 1 months ago
Joint Source Coding, Unity Rate Precoding and FFH-MFSK Modulation Using Iteratively Decoded Irregular Variable Length Coding
— Serially concatenated and iteratively decoded Irregular Variable Length Coding (IrVLC) combined with precoded Fast Frequency Hopping (FFH) M-ary Frequency Shift Keying (MFSK) i...
Sohail Ahmed, Robert G. Maunder, Lie-Liang Yang, S...
ICC
2007
IEEE
120views Communications» more  ICC 2007»
14 years 1 months ago
Joint Power and Constellation Size Adaptation for Mobile Multicast Employing MQAM Over Wireless Fading Channels
Abstract— We propose a power and constellation-size adaptation scheme for the multicast system employing multilevel quadrature amplitude modulation (MQAM) with discrete constella...
Qinghe Du, Xi Zhang