![](/static/media/logo.jpg)
An International Publisher for Academic and Scientific Journals
Author Login
Scholars Journal of Engineering and Technology | Volume-2 | Issue-04
Scrambled Audio Frequency Signal Transmission in a 3-slot STBC Scheme Based SC-FDMA Wireless Communication System
Joarder Jafor Sadique, Md. Ferdous Rahman, Shaikh Enayet Ullah
Published: April 22, 2014 |
117
97
DOI: 10.36347/sjet
Pages: 498-505
Downloads
Abstract
Space time block coding (STBC), an effective and efficient transmit diversity scheme implemented Multiinput multi-output (MIMO) wireless communication systems have well been accepted as robust and efficient to combat
detrimental effects of wireless fading channels. In comparison with STBC, a 3- slot STBC scheme (Orthogonal STBC)
shows superior performance with achievement of rate-one full-diversity and reduced decoding complexity. In this paper,
an effort has been made to study the performance of Orthogonal STBC based Single Carrier Frequency Division Multiple
Access (SC-FDMA) based wireless communication system on scrambled audio signal transmission. The SC-FDMA
system incorporates two channel coding (CRC and ½-rated Convolutional), two linear channel equalization Successive
Interference Cancellation (SIC) based Minimum Mean Square Error (MMSE-SIC) and Zero- Forcing (ZF-SIC) under
QPSK, DQPSK and QAM digital modulations schemes. It is noticeable from simulation results that the system
outperforms in retrieving transmitted audio signal under CRC, ZF-SIC and QAM schemes