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Low Complexity Receiver Structures for Space-Time Coded Multiple-Access Systems

Sudharman K. Jayaweera, H. Vincent Poor
2002 EURASIP Journal on Advances in Signal Processing  
Multiuser detection for space-time coded synchronous multiple-access systems in the presence of independent Rayleigh fading is considered.  ...  Low complexity, partitioned detector structures that separate the multiuser detection and space-time decoding into two stages are also developed.  ...  National Science Foundation under Grant 99-80590 and by the New Jersey Center for Wireless Telecommunications.  ... 
doi:10.1155/s111086570200063x fatcat:xcayrnef6fgshdlujiq77dym2a

Evaluation of Non-Orthogonal Techniques for Advance Wireless System

2019 International journal of recent technology and engineering  
This article represents a comparative study of various types of multiple users' access schemes for cellular radio system.  ...  One of the promising technique for the significant bandwidth efficiency enhancement in future wireless cellular system compared to the conventional multiple access technologies, especially orthogonal multiple  ...  Coding Based NOMA Its unique feature is based on to prepare the codebook (sparse) with overlapped several domains (frequency, time, code, space) for multiple subscribers.  ... 
doi:10.35940/ijrte.a1189.078219 fatcat:kw2ockhp35fpnonnsfc462lpde

RIePDMA and BP-IDD-IC detection

Jie Zeng, Dan Kong, Bei Liu, Xin Su, Tiejun Lv
2017 EURASIP Journal on Wireless Communications and Networking  
Compared with several other integrated detection and decoding algorithms, the proposed BP-IDD-IC algorithm can get better BLER performance with an acceptable complexity.  ...  Pattern division multiple access (PDMA) is a non-orthogonal multiple access (NOMA) scheme which is proposed to meet the demand of massive connection in the future 5G communications.  ...  Introduction Multiple access (MA) technology is important for wireless communication systems.  ... 
doi:10.1186/s13638-016-0801-3 fatcat:ij3m73ek2bgmpf4jq6ispva5ke

Optimal space-time block codes for reduced complexity DS-CDMA decoders

Jifeng Geng, U. Mitra
2001 Conference Record of Thirty-Fifth Asilomar Conference on Signals, Systems and Computers (Cat.No.01CH37256)  
By evaluation of the union bound, it is seen that the MMSE decoder optimized codes offer good performance and ML decoder optimized space-time block codes generally maintain their good performance even  ...  Space-time coding promises greater insensitivity to wireless channel fading and improved channel capacity.  ...  Space-time codes have been introduced successfully to Direct-Sequence Code-Division-Multiple-Access (DS-CDMA) systems.  ... 
doi:10.1109/acssc.2001.987649 fatcat:k6ms532rq5cu3ko64j3wxvjota

Signal processing advances for 3G WCDMA: From rake receivers to blind techniques

Youngchul Sung, Yirang Lim, Lang Tong, A.-J. van der Veen
2009 IEEE Communications Magazine  
Lim was supported by the Ministry of Knowledge Economy (MKE)/ Institute for Information Technology Advancement (IITA).  ...  The key idea for fast inversion is to replace the code matrix multiplication by filtering through a time-varying state-space linear system and to implement the inversion locally in  ...  Linear Time-Varying Equivalent System and Fast Inversion Equivalent State-Space Realization -The key idea for fast inversion is to replace the code matrix multiplication by filtering through a timevarying  ... 
doi:10.1109/mcom.2009.4752676 fatcat:kzshlnbjknblzdolbpdfqlkrtq

Implementable wireless access for B3G networks. III. Complexity reducing transceiver structures [Topics in Radio Communications]

Mischa Dohler, Stephen McLaughlin, Peter Sweeney, Lajos Hanzo
2007 IEEE Communications Magazine  
which undertook research in Software Based Systems and Networks & Services for future mobile systems.  ...  Fully detailed technical reports on this research are available to Industrial Member Companies of Mobile VCE. 1 In addition to the Wireless Access research stream, two other research streams were established  ...  We introduce novel space-time trellis codes suitable for B3G systems.  ... 
doi:10.1109/mcom.2007.344589 fatcat:xjkmrk2t7ncg7ejq3znt2ihkri

A RAKE-Based Iterative Receiver for Space-Time Block-Coded Multipath CDMA

S.K. Jayaweera, H.V. Poor
2004 IEEE Transactions on Signal Processing  
A turbo multiuser receiver is proposed for space-time block and channel-coded code division multiple access (CDMA) systems in multipath channels.  ...  A reduced complexity receiver suitable for systems with large numbers of transmitter antennas is obtained by performing the space-time decoding along each resolvable multipath component and then diversity  ...  space-time trellis-coded multiple access systems.  ... 
doi:10.1109/tsp.2003.822283 fatcat:v6vb3bh475bi7pjmsxuy3l7q4a

Suboptimum receiver interfaces and space-time codes

E. Biglieri, A. Nordio, G. Taricco
2003 IEEE Transactions on Signal Processing  
We compare suboptimum linear and nonlinear interfaces to be used for decoding space-time codes transmitted over a multiple-antenna Rayleigh fading channel with perfect channelstate information available  ...  We introduce a new simple iterative linear interface, based on hard Viterbi decoding and offering a performance considerably improved with respect to noniterative receivers.  ...  DECODING WITH MULTIPLE ANTENNAS We consider a radio system with transmit and receive antennas ( ). Assume that a space-time code [16] is used, whose block length is .  ... 
doi:10.1109/tsp.2003.818370 fatcat:wc7ri7gcizatnaqi7rboboio4y

Multicarrier Block-Spread CDMA for Broadband Cellular Downlink

Frederik Petré, Geert Leus, Marc Moonen, Hugo De Man
2004 EURASIP Journal on Advances in Signal Processing  
To improve the performance over multi-input multi-output (MIMO) multipath fading channels, our MCBS-CDMA transceiver combines well with space-time block-coding (STBC) techniques, to exploit both multiantenna  ...  These properties allow for deterministic MUI elimination through low-complexity block despreading and enable full diversity gains, irrespective of the system load.  ...  For conciseness, we limit ourselves to the case of N T = 2 transmit antennas with rate R = 1 space-time block codes.  ... 
doi:10.1155/s1110865704401048 fatcat:5glpy75h4zgj3jbodtdwwadquq

Performance of Turbo Interference Cancellation Receivers in Space-Time Block Coded DS-CDMA Systems

DerrickB Mashwama, EmmanuelOluremi Bejide
2008 EURASIP Journal on Wireless Communications and Networking  
We investigate the performance of turbo interference cancellation receivers in the space time block coded (STBC) direct-sequence code division multiple access (DS-CDMA) system.  ...  Numerical results show that the MMSE front-end turbo space-time iterative approach receiver (IA) effectively combats the mixture of MAI and intersymbol interference (ISI).  ...  In Section 2, we present the turbo space-time coded MIMO-CDMA system model. Section 3 presents MMSE space-time receivers for coded MIMO-CDMA systems.  ... 
doi:10.1155/2008/473796 fatcat:4kur2wlbnvd4jjonzn6pgu2p7i

Review of Parallel Decoding of Space-time Block Codes toward 4G Wireless and Mobile Communications

Elie Amani, Karim Djouani, Anish Kurien
2013 Procedia Computer Science  
The paper highlights the potential to achieve real-time decoding of high-rate STBCs with the use of robust parallel processors.  ...  of the Golden Code on the ClearSpeed CSX700 SIMD processor achieves a speedup of up to 30 times.  ...  of the Golden Code with worst-case complexity of O(N 2 ) and even O(N 1.5 ), for an N-QAM constellation, and a loss of only 1 dB with respect to optimal decoding for low range of SNR.  ... 
doi:10.1016/j.procs.2013.06.149 fatcat:aqgzgjznizcydeibnjossvz26u

An Efficient Turbo Decoding and Frequency Domain Turbo Equalization for LTE Based Narrowband Internet of Things (NB-IoT) Systems

Mohammed Jajere Adamu, Li Qiang, Rabiu Sale Zakariyya, Charles Okanda Nyatega, Halima Bello Kawuwa, Ayesha Younis
2021 Sensors  
For this reason, such a design considerably increases the overall system complexity, which is difficult to implement.  ...  decoding complexity, power consumption, error floor phenomena, while experiencing performance degradation for short block lengths.  ...  complexity suitable for a LPWA NBIoT system.  ... 
doi:10.3390/s21165351 fatcat:cpludbbw7rgmljhgmmukpotaca

Multiple Antenna Systems: Frontier of Wireless Access [chapter]

E. del Re, L. Pierucci
2005 Emerging Location Aware Broadband Wireless Ad Hoc Networks  
The paper highlights the two main techniques: smart antennas with adaptive beamforming to cancel the interference signals (from other users or multipath) and MIMO systems to exploit the space-time properties  ...  Multiple antenna systems are the new frontier for wireless communications including the actually third generation mobile communication systems, called Universal Mobile Telecommunication System (UMTS),  ...  The space-time decoding process at the receiver requires trellis decoding and may have high complexity.  ... 
doi:10.1007/0-387-23072-6_4 fatcat:kgcmt3m4ofcobhu42oanjrx7u4

A Survey on MIMO Transmission with Discrete Input Signals: Technical Challenges, Advances, and Future Trends [article]

Yongpeng Wu, Chengshan Xiao, Zhi Ding, Xiqi Gao, Shi Jin
2017 arXiv   pre-print
Particularly, a unified framework which designs low complexity transmission schemes applicable to massive MIMO systems in upcoming 5G wireless networks is provided in the first time.  ...  We first summarize the existing fundamental results for MIMO systems with discrete input signals.  ...  For a 4 × 2 system, two TABLE XVI : XVI Recent low decoding complexity space-time techniques with discrete input signals Paper System Coding gain Rate Decoding complexity J.  ... 
arXiv:1704.07611v1 fatcat:4gep4gnbefdytjdggniocdora4

Comprehensive Study and Comparison on 5G NOMA Schemes

Zhanji Wu, Kun Lu, Chengxin Jiang, Xuanbo Shao
2018 IEEE Access  
Compared to the traditional orthogonal multiple access, non-orthogonal multiple access (NOMA) technology can achieve higher spectrum efficiency and support more massive connectivity.  ...  with OMA.  ...  Its distinct characteristic is to design the sparse codebook overlapped in the multiple (space, code, time or frequency) domains for the multiple users.  ... 
doi:10.1109/access.2018.2817221 fatcat:iul7gi2xrjc45mdhg55owlcjvy
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