PAPR reduction in MIMO-OFDM system using combination of OSTBC Encoder and Spreading code sequence
- Resource Type
- Conference
- Authors
- Sheikh, Javaid A.; Parah, Shabir A.; Bhat, G. Mohiuddin; ul Amin, Mehboob
- Source
- IMPACT-2013 Multimedia, Signal Processing and Communication Technologies (IMPACT), 2013 International Conference on. :11-15 Nov, 2013
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Robotics and Control Systems
Signal Processing and Analysis
Peak to average power ratio
Transmitting antennas
MIMO
Modulation
Wireless communication
Receiving antennas
Multiple Input Multiple Out (MIMO)
Peak to Average Power Ratio (PAPR) Orthogonal Space Time Block (OSTBC) Encoder
Spreading code (PN) code
- Language
Orthogonal Frequency Division Multiplexing (OFDM) is regarded as one of the most outstanding multicarrier modulation technique in fourth generation (4G) wireless networks, which makes it possible to transfer very high bit rates despite extensive multipath radio propagation (echoes). The use of smart antenna arrays both at transmitter and receiver further increases the bit rate and enhance the system diversity on time variant and frequency selective channels resulting in a multiple-input multiple-output (MIMO) configuration. However one of the main disadvantages associated with MIMO-OFDM is the high Peak-to-Average Power Ratio (PAPR) of the transmitter's output signal on different antennas. High Peak to Average Power Ratio (PAPR) for MIMO-OFDM system is still a demanding area and difficult issue. So far numerous techniques based on PAPR reduction have been proposed. In this paper a new method based on the combination of OSTBC Encoder and Spreading code sequence have been implemented and simulated. The results obtained are compared with earlier results based on transform techniques. Simulations show that better results are obtained in proposed technique.