Home| Join Now | Sign In | Trainers Login              
SPIRO, Spiro, project for student, student projects
A RESEARCH & DEVELOPMENT ORGANIZATION

For Project Enquiry +91 9791 044 044
To Search
Last Live Projects with video description		 VLSI Projects, Student Projects, Best Projects, College Projects Matlab Projects, vlsi projects Final Year Projects in Chennai , Final Year Training Projects in Chennai
Slideshow Image 1
PAPR ANALYSIS OF CLASS III SLM SCHEME BASED ON VARIANCE OF CORRELATION OF ALTERNATIVE OFDM SIGNAL SEQUENCES
Post Your concept Get Project
Guidance
It is purposely dedicated for innovative students. Here we encourage students who have new concepts and projects in various domains.

Project Titles
Click for Download

For Project Title


Project Zone > Electronics > Communication

Social share: Facebook SPIRO Google Plus

PAPR ANALYSIS OF CLASS-III SLM SCHEME BASED ON VARIANCE OF CORRELATION OF ALTERNATIVE OFDM SIGNAL SEQUENCES

Category : Communication


Sub Category : OFDM


Project Code : ITCM09


Project Abstract

Selected mapping (SLM) is a well-known peak-to average power ratio (PAPR) reduction technique for orthogonal  frequency division multiplexing (OFDM) systems. Recently, a low-complexity SLM scheme, called Class-III SLM scheme, was proposed, which performs only one inverse fast Fourier transform (IFFT) to generate alternative OFDM signal sequences. By randomly selecting the cyclic shift and rotation values, Class-III SLM scheme can generate up to N3 alternative OFDM signal sequences, where N is the IFFT size. However, all N3 alternative OFDM signal sequences do not achieve good PAPR reduction performances. Therefore, an efficient selection method of good rotation and cyclic shift values is needed, which results in good PAPR reduction performance. In this letter, a selection method of cyclic shift values is proposed, which is optimal in terms of minimizing the variance of correlation values between alternative OFDM signal sequences. It is also shown that rotation values are useless when U ≤ N/8, where U is the number of alternative OFDM signal sequences. Also, a selection method of proper rotation values when U >N/8 is proposed. Simulation results show that the proposed method achieves the optimal PAPR reduction performance. In addition, the proposed scheme requires less memory and side information than random scheme.

EXISTING SYSTEM

PROPOSED SYSTEM

EXISTING CONCEPT

In this paper, three novel low-complexity SLM schemes are proposed, where the IFFT blocks were replaced by conversion vectors. We first claim that conversion vectors should be specified in the form of perfect sequences using  Class-I and Class-II SLM schemes.

 

PROPOSED CONCEPT

we focus on Class-III SLM scheme and propose a selection method of optimal cyclic shift values by analyzing the correlation between alternative OFDM signal sequences. The proposed analytic method can also be applied to Class-I and Class-II SLM schemes.

EXISTING TECHNIQUE:

Class-I and Class-II Selected mapping (SLM) used

PROPOSED TECHNIQUE:

Class-III Selected mapping conversion vector  better PAPR reduction .

DRAWBACKS

      High peak-to-average power ratio (PAPR)

 Bit error is high

 

ADVANTAGES

Makes efficient use of the spectrum by

allowing overlap

High transmission bitrates.

      Better BER performance and lower            complexity

 

 
Quick Links
View for Project Ideas
 
 
MILE STONES
GUARANTEES
CONTACT US
 
Training and Developemet, Engg Projects
 So far we have provided R&D training for more than 1,00,000 engineering Students.
Latest Projects 2012, Latest Technologiy Project
 Had conducted seminars in the recent trends of technology at various colleges.
Our research projects had been presented in various National & International Conferences.
Most of our projects were identified by the industries as suitable for their needs.
Our n-number of students got research scholarship to extend our assisted projects for further development.
   
   
Training and Developemt, Project Development in Chennai
SPIRO guarantees small class sizes.
Final Year Projects
SPIRO guarantees quality instructors.
Student Projects, Stupros
SPIRO guarantees competence.
Projects, student projects
SPIRO guarantees that training from SPIRO will be more cost-effective than training from any other source.
Final Year Projects, Projects, student projects
SPIRO guarantees that students in open-enrollment classes are protected against cancellations and will be able to receive desired training at the cost they expect and in the time frame they have planned.
Projects for student
SPIRO guarantees overall quality with a 100% money-back guarantee. If you're not totally satisfied for any reason, simply withdraw before the second day of any class. Notify the instructor and return all course materials and you will receive a 100% refund.
SPIRO SOLUTIONS PRIVATE LIMITED
For ECE,EEE,E&I, E&C & Mechanical,Civil, Bio-Medical
#1, C.V.R Complex, Singaravelu St, T.Nagar, Chennai - 17,
(Behind BIG BAZAAR)Tamilnadu,India
Mobile : +91-9962 067 067, +91-9176 499 499
Landline : 044-4264 1213
Email: info@spiroprojects.com

For IT, CSE, MSC, MCA, BSC(CS)B.COM(cs)
#78, 3rd Floor, Usman Road, T.Nagar, Chennai-17.
(Upstair Hotel Saravana Bhavan) Tamilnadu,India
Mobile: +91-9791 044 044, +91-9176 644 044
E-Mail: info1@spiroprojects.com
About Us | Project Training | Privacy policy | Disclaimer | Contact Us

Copyright © 2015-2016 Stupros All rights reserved.