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Multiple Frequency Offsets Compensation in OFDMA Femtocells

Multiple Frequency Offsets Compensation in OFDMA Femtocells

Shaodan Ma, Lanlan He, Yik-Chung Wu, Tung-Sang Ng
Copyright: © 2012 |Pages: 20
ISBN13: 9781466600928|ISBN10: 1466600926|EISBN13: 9781466600935
DOI: 10.4018/978-1-4666-0092-8.ch007
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MLA

Ma, Shaodan, et al. "Multiple Frequency Offsets Compensation in OFDMA Femtocells." Femtocell Communications and Technologies: Business Opportunities and Deployment Challenges, edited by Rashid A. Saeed, et al., IGI Global, 2012, pp. 103-122. https://doi.org/10.4018/978-1-4666-0092-8.ch007

APA

Ma, S., He, L., Wu, Y., & Ng, T. (2012). Multiple Frequency Offsets Compensation in OFDMA Femtocells. In R. Saeed, B. Chaudhari, & R. Mokhtar (Eds.), Femtocell Communications and Technologies: Business Opportunities and Deployment Challenges (pp. 103-122). IGI Global. https://doi.org/10.4018/978-1-4666-0092-8.ch007

Chicago

Ma, Shaodan, et al. "Multiple Frequency Offsets Compensation in OFDMA Femtocells." In Femtocell Communications and Technologies: Business Opportunities and Deployment Challenges, edited by Rashid A. Saeed, Bharat S. Chaudhari, and Rania A. Mokhtar, 103-122. Hershey, PA: IGI Global, 2012. https://doi.org/10.4018/978-1-4666-0092-8.ch007

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Abstract

With the properties of interference avoidance and the robustness against multipath channels, Orthogonal Frequency Division Multiple Access (OFDMA) has been considered a promising solution to the interference control problem in femtocells. As a multi-carrier transmission technique, OFDMA, however, is highly vulnerable to the Carrier Frequency Offset (CFO). This chapter discusses the challenges of multiple frequency offsets compensation in OFDMA femtocells. A number of multiple frequency offsets compensation algorithms are reviewed and their complexities are discussed in detail. A new approach that exploits the redundancy offered by cyclic prefix is then introduced to enhance the compensation performance. Finally, numerical results are presented to illustrate the performance of different compensation algorithms.

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