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Analog joint source-channel coding over MIMO channels

Francisco J Vazquez-Araujo, Oscar Fresnedo, Luis Castedo, Javier Garcia-Frias
2014 EURASIP Journal on Wireless Communications and Networking  
We study analog JSCC MIMO receivers that utilize either linear minimum mean square error or decision feedback MIMO detection.  ...  An example of such an optimal system is the direct transmission of discrete-time uncoded Gaussian samples over AWGN channels, both with the same bandwidth [3] .  ...  Acknowledgements This work has been funded by Xunta de Galicia, MINECO of Spain, and FEDER funds of the EU under grants 2012/287, TEC2010-19545-C04-01, and CSD2008-00010; and by NSF award CIF-0915800.  ... 
doi:10.1186/1687-1499-2014-25 fatcat:mpo3qkawcbbkxd22f4oe2jhk4m

Signal processing in decision-feedback equalization of intersymbol-interference and multiple-input/multiple-output channels: a unified view

Robert Fischer, Johannes Huber, Christoph Windpassinger
2003 Signal Processing  
The aims of processing the received signal are discussed and compared for ISI channels, MIMO channels, and MIMO ISI channels.  ...  The calculation of the optimum filters for these applications is presented in a unified way, and it is shown that each aspect in one field has its immediate correspondence in the other application.  ...  Additionally, we thank for many years of faithful and fruitful cooperation at the Telecommunications Laboratory in Erlangen.  ... 
doi:10.1016/s0165-1684(03)00078-1 fatcat:efykhtls3vcwnnsnaemvpon32u

Analog Joint Source-Channel Coding In Mimo Rayleigh Fading Channels

Luis Castedo, Óscar Fresnedo, Javier Garcia-Frias, Miguel González-López, Francisco Vazquez-Araujo
2012 Zenodo  
Publication in the conference proceedings of EUSIPCO, Bucharest, Romania, 2012  ...  Figure 2 shows the block diagram of an analog MIMO transmission system with an MMSE linear receiver.  ...  CONCLUSIONS In this work we have investigated the analog transmission of discrete-time continuous-amplitude sources over MIMO Rayleigh fading channels at extremely high data rates.  ... 
doi:10.5281/zenodo.52075 fatcat:z7fhjrweu5hxzgb7irb74pcmdq

Adaptive equalization

S. Qureshi
1982 IEEE Communications Magazine  
identification for echo cancellation in communication circuits for speech or data transmission.  ...  Fig. 1 . 1 Data transmission system. Fig. 3 . 3 Channel impulse response.  ...  His interests include data communication, computer architecture for signal processing and the application of digital signal processing to ication.  ... 
doi:10.1109/mcom.1982.1090994 fatcat:l7jev7zbozh2lb7yisvk2zj7au

40 Gb/s CAP32 short reach transmission over 80 km single mode fiber

Yuliang Gao, Qunbi Zhuge, Wei Wang, Xian Xu, Jonathan M. Buset, Meng Qiu, Mohamed Morsy-Osman, Mathieu Chagnon, Feng Li, Liang Wang, Chao Lu, Alan Pak Tao Lau (+1 others)
2015 Optics Express  
In addition, we study the performance of a decision feedback equalizer (DFE) and a traditional linear equalizer (LE) in a channel with non-flat in-band frequency response.  ...  To the best of our knowledge, this is the twice the longest transmission distance reported so far for a single-carrier 40 Gbit/s CAP system around 1550 nm.  ...  Acknowledgments The authors would like to acknowledge the support of the Hong Kong Government General Research Fund (GRF) under project number PolyU 152079/14E.  ... 
doi:10.1364/oe.23.011412 pmid:25969236 fatcat:k2ha7piidvdn3eocr3fy7xgxem

Analog Joint Source-Channel Coding for OFDM systems

Oscar Fresnedo, Francisco J. Vazquez-Araujo, Luis Castedo, Javier Garcia-Frias
2013 2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications (SPAWC)  
We show that the three analog JSCC transmission strategies approach the optimal distortion-cost trade-off although much better performance is obtained with the adaptive coding with precoding method, specially  ...  Three different alternatives for system optimization are considered: non-adaptive coding, adaptive coding, and adaptive coding with precoding.  ...  ANALOG JSCC MIMO-OFDM WITH LINEAR PRECODING If CSI is available at transmission, further performance improvements can be obtained if channel symbols are precoded prior to its transmission in a MIMO-OFDM  ... 
doi:10.1109/spawc.2013.6612141 dblp:conf/spawc/FresnedoVCG13 fatcat:rgxeq3r53baflmkpijeavitile

PERFORMANCE EVALUATION OF DECISION FEEDBACK EQUALIZATION (DFE) BASED DISPERSION COMPENSATOR BY VARYING FORWARD TAP SPACE & ADAPTIVE STEP SIZE IN THE SCENARIO OF 4X10-GBIT/S WDM SYSTEM

Gursharanpal Singh
2017 International Journal of Advanced Research in Computer Science  
With the advancement of technology, demand of bandwidth increases exponentially with time. Hence, optical fiber communication become the optimum choice for backbone networks.  ...  Further, we compare the performance of decision feedback equalizer with two different configurations.  ...  At high speed data transmission in optical system, dependence of refractive index on intensity of signal, another non-linearity i.e. Kerr effect become active [2] . III.  ... 
doi:10.26483/ijarcs.v8i7.4228 fatcat:7r3q5umwe5d65baymac56qb7y4

Approaching the matched filter bound with block transmission techniques

Fábio Silva, Rui Dinis, Nuno Souto, Paulo Montezuma
2011 Transactions on Emerging Telecommunications Technologies  
Block transmission techniques, with appropriate cyclic prefixes and employing frequency-domain equalisation techniques, have been shown to be suitable for high data rate transmission over severely time-dispersive  ...  channels.  ...  For both block transmission schemes, a cyclic prefix, with length longer than the overall channel impulse response, is appended leading to the signal fs CP n I n D N G ; : : : ; N 1g, which is transmitted  ... 
doi:10.1002/ett.1513 fatcat:zvsmjwfpgnfo3l5bimq6unphhi

Generalized Partial Response for Equalized Channels with Rational Spectra

D. Messerschmitt
1975 IRE Transactions on Communications Systems  
It is shown that on thef1/2 channel characteristic of coaxial cable, most of the. noise advantage of decision-feedback equalization can be achieved with a moderate number of received levels, and that some  ...  of this noise advantage can be traded for a reduced number of received levels.  ...  This noise advantage for optimum receiver equalization is power or number of received decision levels, and for random data its error propagation can be controlled by limiting the number of feedback taps  ... 
doi:10.1109/tcom.1975.1092745 fatcat:i4t4zaivzzeydna7c32jb5imfu

Joint Tomlinson-Harashima Precoding and Optimum Transmit Power Allocation for SC-FDMA

Mohamed Noune, Andrew Nix
2010 2010 IEEE Wireless Communication and Networking Conference  
We derive the optimum power allocation for SC-FDMA transmission for both Zero-Forcing (ZF) and Minimum Mean-Square Error (MMSE) LE receivers in order to maximize the achievable data rate subject to constant  ...  In this paper we propose a joint implementation of the derived power allocation scheme with THP.  ...  ACKNOWLEDGMENT The authors would like to thank the Centre for Communications Research for the provision of research facilities and access to a high performance computing cluster.  ... 
doi:10.1109/wcnc.2010.5506433 dblp:conf/wcnc/NouneN10 fatcat:ithar2diinhxdhb4ucmxakh3ym

DOWN-LINK CATV/FTTH AND UP-LINK FTTH TRANSPORT SYSTEMS BASED ON REFLECTIVE SEMICONDUCTOR OPTICAL AMPLIFIER

Chen-Ling Ying, Ching-Hung Chang, Ya-Ling Houng, Hai-Han Lu, Wen-Shing Tsai, Heng-Sheng Su
2009 Progress In Electromagnetics Research C  
rate (BER) were obtained for downlink transmission; low BER value was also achieved for up-link transmission over a 50-km single-mode fiber (SMF) transmission.  ...  By using −1 side mode injection-locked/optoelectronic feedback techniques, brilliant performances of carrier-to-noise ratio (CNR), composite second-order (CSO), composite triple beat (CTB), and bit error  ...  (a) The measured down-link BER curves of 2.5 Gbps BB data channel, (b) the measured up-link BER curves of 1.25 Gbps BB data channel. the back-to-back BER curve as RSOA with −25 dBm seeding power is also  ... 
doi:10.2528/pierc09101503 fatcat:5qvzl7ywljd3lk3w6tm3cvhjai

Adaptive equalization

S.U.H. Qureshi
1985 Proceedings of the IEEE  
Bandwidth-efficient data transmission over telephone and radio channels is made possible by the use of adaptive equalization to compensate for the time dispersion introduced by the channel.  ...  It is shown that a fractionally spaced equalizer can serve as the optimum receive filter for any receiver.  ...  Nyquist's telegraph transmission theory [I151 in 1928 laid the foundation for pulse transmission over band-limited analog channels.  ... 
doi:10.1109/proc.1985.13298 fatcat:csxa4sag4jes5poyujgwsiqj2e

Precoding in Multiantenna and Multiuser Communications

C. Windpassinger, R.F.H. Fischer, T. Vencel, J.B. Huber
2004 IEEE Transactions on Wireless Communications  
It is shown that the capacity of the underlying MIMO channel can be utilized asymptotically by means of non-linear precoding.  ...  A number of aspects of practical importance are studied. Loading, i.e., the optimum distribution of transmit power and rate is discussed in detail.  ...  In other words, instead of feeding the data symbols a k into the linear preequalization, the effective data symbols v k def = a k +p k are passed into B −1 , which is implemented by the feedback structure  ... 
doi:10.1109/twc.2004.830852 fatcat:s7bni5b4azadxhlvqnrgzjfaii

Hybrid Beamforming for Massive MIMO - A Survey [article]

Andreas F. Molisch, Vishnu V. Ratnam, Shengqian Han, Zheda Li, Sinh Le Hong Nguyen, Linsheng Li, Katsuyuki Haneda
2017 arXiv   pre-print
Hybrid multiple-antenna transceivers, which combine large-dimensional analog pre/postprocessing with lower-dimensional digital processing, are the most promising approach for reducing the hardware cost  ...  We provide a taxonomy in terms of the required channel state information (CSI), namely whether the processing adapts to the instantaneous or the average (second-order) CSI; while the former provides somewhat  ...  While narrow analog beams are preferred for user-specific data transmission, wide beams are preferred for broadcasting control signals to all UEs.  ... 
arXiv:1609.05078v2 fatcat:36trst5gind3pbjtir7ood6btm

Optimized training and feedback for MIMO downlink channels

Mari Kobayashi, Nihar Jindal, Giuseppe Caire
2009 2009 IEEE Information Theory Workshop on Networking and Information Theory  
The total bandwidth consumed is the sum of the bandwidth/resources used for downlink training, channel feedback, and data transmission.  ...  The optimal number of downlink training pilots is seen to be essentially the same for both feedback techniques, but digital feedback is shown to provide a larger net rate than analog feedback.  ...  From a high-level system perspective, increasing either training or feedback effectively takes away from the bandwidth available for actual data transmission.  ... 
doi:10.1109/itwnit.2009.5158576 dblp:conf/itw/KobayashiJC09 fatcat:tbfk5r4ndzd6rnibcdz5qfai5m
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