NDLI: Performance evaluation of cooperative relay assisted transmission models in LTE system

Content Provider	IEEE Xplore Digital Library
Author	Krishna, P. Rao, K.K. Kumar, T.A.
Copyright Year	2015
Description	Author affiliation: Dept. of Electron. & Commun. Eng., Vaagdevi Coll. of Eng., Warangal, India (Rao, K.K.) \|\| Dept. of Electron. & Commun. Eng., SVS Group of Instn., Warangal, India (Krishna, P.) \|\| Dept. of Electron. & Commun. Eng., SVS Group of Instn. Eng. Coll., Warangal, India (Kumar, T.A.)
Abstract	The User Equipments (UE) nowadays are able to provide various internet applications and services that raise the demand for high speed data transfer and Quality of Service (QoS). Accordingly, next generation mobile communication systems driven by these demands are expected to provide higher data rates and better link quality compared to the existing systems. Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (SC-FDMA) are strong multiple access candidates for the uplink of the International Mobile Telecommunications-Advanced (IMT-Advanced). These multiple access techniques in combination with other promising technologies such as multi-hops transmission and Multiple-Input-Multiple-Output (MIMO) will be utilized to reach the targeted IMT-Advanced system performance. In this paper, OFDMA and SC-FDMA are adopted for the downlink and uplink transmission of Long Term Evolution (LTE). Two transmission scenarios are considered, namely the single hop transmission and the relay assisted transmission (two hops). In addition, a hybrid multiple access technique that combines the advantages of OFDMA and SC-FDMA in term of low Peak-to-Average Power Ratio (PAPR) and better link performance in terms of Symbol Error Rate (SER) has been proposed in relay assisted transmission scenario. Simulation results show that the obtained results from the relay-assisted transmission (two hops) are better than those obtained from the direct transmission (one hop) for all the studied scenarios.
Starting Page	1184
Ending Page	1188
File Size	894034
Page Count	5
File Format	PDF
e-ISBN	9781467379106
DOI	10.1109/ICGCIoT.2015.7380642
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-10-08
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance gain Mobile communication Downlink IMT-Advanced Relays LTE-Advanced OFDMA Yttrium Multi-hop transmission LTE Uplink Long Term Evolution SC FDMA
Content Type	Text
Resource Type	Article

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