Distributed Space-Time/Frequency Coding Schemes for Single-Carrier Frequency Division Multiple Access Systems

Al-nahari, A. Y.; El-Samie, F. E. Abd; Dessouky, M. I.
January 2011
ISRN Communications & Networking;2011, Special section p1
Academic Journal
The single carrier-frequency division multiple access (SC-FDMA) system is a new system that was adopted in the standardization of the upcoming 3GPP long-term evolution (LTE). Designing diversity-achieving schemes for the SC-FDMA system is a challenging task. The codes adopted should not affect the peak-to-average power ratio (PAPR) among other constraints. In this paper, we consider the design of cooperative diversity schemes for SC-FDMA systems in the uplink direction. Specifically, two relay-assisted distributed space-time/frequency codes are proposed. The proposed distributed space-frequency code (SFC) achieves full spatial diversity in the uplink fast-fading channels, where a diversity of order three can be achieved. The proposed code keeps a low PAPR, which is a good feature of the system. A minimum mean square error (MMSE) decoder is used at the receiver of the destination node. Moreover, we propose a bandwidth-efficient distributed space-time code (STC) for slow-fading relay channels. A decode-and-forward (DF) protocol is used at the relay node, and the possibility of erroneous decoding is taken into account. Simulation results demonstrate the performance improvement of the proposed schemes.


Related Articles

  • Impact of Multi-Diagonal Code on High-Speed Spectral Amplitude Coding Optical Code Division Multiple-Access Networks. Abd, Thanaa; Aljunid, S.; Fadhil, Hilal; Junita, M.; Saad, M. // Arabian Journal for Science & Engineering (Springer Science & Bu;Sep2013, Vol. 38 Issue 9, p2389 

    In this paper, we present the impact of the multi-diagonal (MD) code for high data rate in spectral amplitude coding optical code division multiple-access (SAC-OCDMA) networks. An MD code structure for SAC-OCDMA system is presented. The MD code can be flexibly generated for any weight and number...

  • Performance Analysis of Joint Network Channel Coding In Various Network Topologies. Rajeswari, D.; Vijayalakshmi, K. // International Journal of Computer Science & Information Technolo;2014, Vol. 5 Issue 1, p961 

    JNCC seamlessly couples channel coding and network coding to effectively combat the detrimental effect of fading of wireless channels. In this paper we used Joint Network-Channel Coding scheme, for reliable multiple access relay channel. Specifically, JNCC combines irregular lowdensity...

  • Performance Analysis of MIMO Assisted Interleave Division Multiple Access System with Multi-user Detection.  // International Journal of Computer Applications;Dec2010, Vol. 11, p23 

    The article presents a study that analyzes the performance of multi input multi output (MIMO) assisted interleave based multiple-access system. It shows that interleave division multiple access (IDMA) scheme can achieve near single user performance in situations with very large numbers of users...

  • Two-User Turbo-Hadamard Code for Synchronized Gaussian Multiple-Access Channel. Li Xiong; Jun Cheung; Watanabe, Yoichiro // International MultiConference of Engineers & Computer Scientists;2009, p305 

    Two user turbo-Hadamard code and its decoding procedure are proposed for sychronized Gaussian multiple-access channel. The encoder of each user consists of 2 component encoders concatenated parallel, and the component vector in the output of one user's encoder is orthogonal to that of other...

  • Lattice-coded cooperation protocol for the half-duplex Gaussian two-way relay channel. Ghasemi-Goojani, Shahab; Behroozi, Hamid // EURASIP Journal on Wireless Communications & Networking;12/2/2015, Vol. 2015 Issue 1, p1 

    This paper studies the Gaussian two-way relay channel (GTWRC), where two nodes exchange their messages with the help of a half-duplex relay. We investigate a cooperative transmission protocol, consisting of four phases: multiple access (MA) phase, broadcast (BC) phase, and two cooperative...

  • IDMA-Based Compressed Sensing for Ocean Monitoring Information Acquisition with Sensor Networks. Gongliang Liu; Wenjing Kang // Mathematical Problems in Engineering;2014, p1 

    The ocean monitoring sensor network is a typically energy-limited and bandwidth-limited system, and the technical bottleneck of which is the asymmetry between the demand for large-scale and high-resolution information acquisition and the limited network resources. The newly arising compressed...

  • Superposition Coding and Analysis for Cooperative Multiple Access Relay System. Meng, Yan; Liu, Gang; Shen, Gang; Liu, Zheng; Jiang, Qi; Tang, Yanbo // Wireless Personal Communications;May2013, Vol. 70 Issue 2, p1011 

    The conventional straightforward relaying scheme named decode-and-forward (DF) protocol is used at relay to decode the data received from source and forward the decoded data to the destination to improve the spatial diversity gain. Although it is a simple scheme, the total resource efficiency is...

  • Space-Polarization Division Multiple Access System with Limited Feedback. Heejin Joung; Han-Shin Jo; Cheol Mun; Jong-Gwan Yook // KSII Transactions on Internet & Information Systems;Apr2014, Vol. 8 Issue 4, p1292 

    This paper proposes a space-polarization division multiple access (SPDMA) system that has limited feedback channels. The system simultaneously serves data streams to multiple mobile users through dual-polarized antenna arrays, by using pre-determined sets of precoding vectors that are orthogonal...

  • Phase Induced Intensity Noise Evasion in SAC-OCDMA Systems Using Flexible Cross Correlation (FCC) Code Algorithm. Rashidi, C. B. M.; Aljunid, S. A.; Ghani, F.; Fadhil, Hilal. A.; Anuar, M. S. // Australian Journal of Basic & Applied Sciences;Aug2013, Vol. 7 Issue 8, p437 

    In this paper, a new class of codes called the Flexible Cross Correlation (FCC) code is presented. The FCC code is significant in Spectral Amplitude Coding - Optical Code Division Multiple Access (SAC-OCDMA) systems since these codes effectively evasion the effects of Phase Induced Intensity...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics