Object-Oriented Implementation of LTE Turbo Codes by Anusha Gangadi Master of Science in Electrical Engineering West Virginia University Matthew C. Valenti, Ph.D., Chair Turbo codes are a popular form of error correction codes as they perform close to the Shannon limit. Turbo codes have interesting features like parallel code concatenation, nonuniform interleaving, and an iterative decoding alg...

Recent wireless communication standards such as 3GPP-LTE, WiMax, DVB-SH, HSPA and LTE / LTE advanced incorporate turbo code for their excellent performance. In this paper, we present a new 3 dimensional turbo decoder including bit error rate (BER) is much better than the 2 dimensional turbo decoder used by LTE / LTE advanced, as is illustrated by simulation. We also address the issue of the imp...

This paper addresses the application of turbo codes for third-generation wireless services. It describes the specific characteristics of high-rate data applications in third-generation wide-band code-division multiple-access (CDMA) systems that make turbo codes superior to convolutional codes. In particular, it shows the positive effect of fast power control employed in these systems on the rel...

Recently, turbo codes have received great attention due to their outstanding performance. Unfortunately, a high performance is associated with large transmission delays prohibiting an application for speech transmission. Hence, the aim of this paper is the comparison of turbo codes employing short interleavers with convolutional codes in terms of bit error rate performance and computational eff...

In recent years, numerous turbo-roundabouts have been built in many European countries. To date, there are no Italy and even the regulations do not provide for their implementation. Turbo-roundabouts considered ideal alternative to multi-lane roundabouts as they advantages. However, offer better operational performance only specific traffic flow distributions. This research used case study of a...

Since its introduction in 1993, the turbo coding error-correction technique has generated a tremendous interest due to its near Shannon-limit performance. Two key innovations of turbo codes are parallel concatenated encoding and iterative decoding. In its IMT-2000 initiative, the International Telecommunication Union (ITU) adopted turbo coding as a channel coding standard for Third-Generation (...

Recently a coding scheme, termed turbo-codes was proposed, which achieves results very close to the Shannon-limit. The encoding and decoding of turbo-codes is reviewed. In particular, a comparison of the current methods used for terminating the trellis of the turbo-code are described. A novel approach to termination of the code is introduced which removes the need to transmit tail bits across t...

This study looks at the use of Turbo Codes across a space time spreading (STS) channel in the absence of multi-path. For 3 and 5 iterations, turbo codes was shown to improve the BER by up to 3%. Key Words-Turbo Codes, Space Time Spreading, Bit Error Rate, Transmit Diversity