Date of Award:

5-2012

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Electrical and Computer Engineering

Committee Chair(s)

Todd K. Moon

Committee

Todd K. Moon

Committee

Jacob Gunther

Committee

Donald Cripps

Abstract

Error correcting codes help correct errors in transmitted data. These errors are caused by noise and distortion that are introduced during transmission. In some cases, there is more noise on some portions of a transmitted message than on others. This extra noise is referred to as burst noise and causes bursts of errors.

Low-density parity-check (LDPC) codes are a family of error correcting codes. They provide excellent performance in many cases, but perform poorly when burst noise is present. Methods have been developed that help compensate for bursts of errors. In most cases, these do not completely account for the burst noise. Instead, they manipulate the data to spread the errors out across the received data. This helps the LDPC code correct the errors more easily in some cases.

As an alternative approach, a method is developed to identify the locations of the bursts and properly account for them in order to improve LDPC code error correcting performance. This is shown to exceed the performance of existing techniques used with LDPC codes. In addition, this technique provides an opportunity to utilize LDPC codes in scenarios where they could not previously be used.

Checksum

4f2e67c085dd2140e913c0f0f484208a

Comments

This work made publicly available electronically on December 21, 2012.

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