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相关论文: Bit-interleaved coded modulation in the wideband r…

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Multidimensional Voronoi constellations (VCs) are shown to be more power-efficient than quadrature amplitude modulation (QAM) formats given the same uncoded bit error rate, and also have higher achievable information rates. However, a coded…

信息论 · 计算机科学 2023-08-02 S. Li , A. Mirani , M. Karlsson , E. Agrell

Although BICM can significantly improves the BER performance by iteration processing between the demapping and the decoding in a traditional receiver, its design and performance in PNC system has fewer studied. This paper investigates a bit…

信息论 · 计算机科学 2013-10-03 Xu Li , Shengli Zhang , Gongbin Qian

In this letter we determine the derivative of the mutual information corresponding to bit-interleaved coded modulation systems. The derivative follows as a linear combination of minimum-mean-squared error functions of coded modulation sets.…

信息论 · 计算机科学 2007-08-16 Albert Guillen I Fabregas , Alfonso Martinez

Asymptotic expressions of the mutual information between any discrete input and the corresponding output of the scalar additive white Gaussian noise channel are presented in the limit as the signal-to-noise ratio (SNR) tends to infinity.…

信息论 · 计算机科学 2014-04-23 Alex Alvarado , Fredrik Brannstrom , Erik Agrell , Tobias Koch

Energy efficiency of fixed-rate transmissions is studied in the presence of queueing constraints and channel uncertainty. It is assumed that neither the transmitter nor the receiver has channel side information prior to transmission. The…

信息论 · 计算机科学 2009-06-23 Deli Qiao , Mustafa Cenk Gursoy , Senem Velipasalar

In this paper, we have considered the optimization of the $M$-ary quadrature amplitude modulation (MQAM) constellation size to minimize the bit energy consumption under average bit error rate (BER) constraints. In the computation of the…

信息论 · 计算机科学 2009-06-23 Qing Chen , Mustafa Cenk Gursoy

Optimal decoding of bit interleaved coded modulation (BICM) MIMO-OFDM where an imperfect channel estimate is available at the receiver is investigated. First, by using a Bayesian approach involving the channel a posteriori density, we…

网络与互联网体系结构 · 计算机科学 2007-08-13 Sajad Sadough , Pablo Piantanida , Pierre Duhamel

It is shown that while the mutual information curves for coded modulation (CM) and bit interleaved coded modulation (BICM) overlap in the case of a single input single output channel, the same is not true in multiple input multiple output…

信息论 · 计算机科学 2007-07-16 Dumitru Mihai Ionescu , Dung N. Doan , Steven D. Gray

We study quantization of log-likelihood ratios (LLR) in bit-interleaved coded modulation (BICM) systems in terms of an equivalent discrete channel. We propose to design the quantizer such that the quantizer outputs become equiprobable. We…

信息论 · 计算机科学 2009-05-06 Clemens Novak , Peter Fertl , Gerald Matz

Coded modulation is a key technique to increase the spectral efficiency of coherent optical communication systems. Two popular strategies for coded modulation are turbo trellis-coded modulation (TTCM) and bit-interleaved coded modulation…

信息论 · 计算机科学 2017-10-12 Eric Sillekens , Alex Alvarado , Chigo Okonkwo , Benn C. Thomsen

This paper presents Bit-Interleaved Coded Modulation metrics for joint estimation detection using training or reference signal transmission strategies for short to long block length channels. We show that it is possible to enhance the…

信息论 · 计算机科学 2025-02-11 Mody Sy , Raymond Knopp

Future wireless networks are envisioned to employ multiple-input multiple-output (MIMO) transmissions with large array sizes, and therefore, the adoption of complexity-scalable transceiver becomes important. In this paper, we propose a…

信号处理 · 电气工程与系统科学 2025-04-15 Jie Yang , Wanchen Hu , Yi Jiang , Shuangyang Li , Xin Wang , Derrick Wing Kwan Ng , Giuseppe Caire

We study the performance of binary spatially-coupled low-density parity-check codes (SC-LDPC) when used with bit-interleaved coded-modulation (BICM) schemes. This paper considers the cases when transmission takes place over additive white…

信息论 · 计算机科学 2013-03-05 Arvind Yedla , Mostafa El-Khamy , Jungwon Lee , Inyup Kang

Spatial Modulation (SM) can utilize the index of the transmit antenna (TA) to transmit additional information. In this paper, to improve the performance of SM, a non-uniform constellation (NUC) and pre-scaling coefficients optimization…

信息论 · 计算机科学 2023-10-25 Xinghao Guo , Hanjiang Hong , Yin Xu , Yi-yan Wu , Dazhi He , Wenjun Zhang

Next generation wireless systems will need higher spectral efficiency as the expected traffic volumes per unit bandwidth and dimension will inevitably grow. As a consequence, it is necessary to design coding schemes with performances close…

信息论 · 计算机科学 2017-05-10 Guido Montorsi , Farbod Kayhan

We consider the problem of using polar codes with higher order modulation over AWGN channels. Unlike prior work, we focus on using modulation independent polar codes. That is, the polar codes are not re-designed based on the modulation…

信息论 · 计算机科学 2016-10-03 Saurabha R Tavildar

This paper addresses the performance of bit-interleaved coded multiple beamforming (BICMB) [1], [2] with imperfect knowledge of beamforming vectors. Most studies for limited-rate channel state information at the transmitter (CSIT) assume…

信息论 · 计算机科学 2008-05-08 Ersin Sengul , Hong Ju Park , Ender Ayanoglu

We introduce a trainable coded modulation scheme that enables joint optimization of the bit-wise mutual information (BMI) through probabilistic shaping, geometric shaping, bit labeling, and demapping for a specific channel model and for a…

信息论 · 计算机科学 2020-04-15 Fayçal Ait Aoudia , Jakob Hoydis

We consider binary continuous phase modulation (CPM) signals used in some recent low-cost and low-power consumption telecommunications standard. When these signals are generated through a low-cost transmitter, the real modulation index can…

信息论 · 计算机科学 2015-09-14 Malek Messai , Colavolpe Giulio , Amis Karine , Guilloud Frederic

A scheme is proposed that combines probabilistic signal shaping with bit-metric decoding. The transmitter generates symbols according to a distribution on the channel input alphabet. The symbols are labeled by bit strings. At the receiver,…

信息论 · 计算机科学 2014-04-22 Georg Böcherer