An Overview of Optimization Algorithm for Complexity Reduction in PTS technique of PAPR Reduction

نویسندگان

  • Renu Verma
  • Mangal Singh
  • Neelam Dewangan
چکیده

Partial Transmit Sequence technique is one of the most popular technique for PAPR reduction in OFDM. But in this scheme the complexity for searching the phase factor is increased with increase in number of sub blocks. This paper describes the different types of optimization methods used in PTS scheme, for optimization of phase factor & reducing the searching complexity .Also we can analyze their performance in terms of PAPR reduction for OFDM. Key words— Artificial Bee Colony(ABC), Cross Entropy & Parametric Cross Entropy Optimization(CE & PCE), Firefly Optimization algorithm(FA), Harmony Search (HS), Orthogonal Frequency Division Multiplexing (OFDM), Partial Transmit Sequence (PTS), Particle Swarm Optimization(PSO), Peak to Average Power Ratio(PAPR).

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Increasing the Performance of OFDM Systems by PAPR Reduction in PTS Technique using Election Optimization Algorithm

Orthogonal Frequency Division Multiplexing (OFDM) is a useful technology in wireless communications that provides high-rate data transmission in multipath fading channels. The advantages of OFDM systems are the high spectral efficiency and strong resistance to frequency selective fading. In OFDM systems, a large number of sub-carriers are used to modulate the symbols causing the time-domain OFD...

متن کامل

Using evolutionary computation technique for trade-off between performance peak-to average power ration reduction and computational complexity in OFDM systems

A low-complexity partial transmit sequence (PTS) technique for reducing the peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) system is presented. However, PTS technique requires an exhaustive search over all combinations of allowed phase weighting factors, and the search complexity increases exponentially with the number of sub-blocks in OFDM system. He...

متن کامل

A Sub-optimal Pts Algorithm Based on Bacterial Foraging Optimization Technique for Papr Reduction in Mimo-ofdm System

A suboptimal partial transmit sequence (PTS) based on bacterial foraging optimization (BFO) algorithm is presented for the low computation complexity and the reduction of the peak-to-average power ratio (PAPR) of a multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system. In general, PTS technique can improve the PAPR statistics of a MIMOOFDM system. However,...

متن کامل

Peak-to-average power ratio reduction using backtracking search optimization algorithm in OFDM systems

A peak-to-average power ratio (PAPR) reduction method for an orthogonal frequency division multiplexing (OFDM) system based on a combination of a partial transmit sequence (PTS) scheme with the backtracking search optimization algorithm (BSA) is proposed. The PTS scheme shows good PAPR reduction performance; however, it requires a complex computation to search the set of optimum phase factors, ...

متن کامل

An Optimized Algorithm assisted PTS scheme for PAPR reduction in OFDM Systems

Partial Transmit Sequence (PTS) is an attractive and pragmatic technique for reduction of Peak to Average Power Ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) system, however it demands an exhaustive search over all possible combinations of allowable phase factors, resulting in larger computational complexity. In this paper the search for optimal phase factor is expressed as ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014