A Double Dwell Frequency Synchronization Scheme For OFDM Systems
A Master of Science thesis in Electrical Engineering by Nour Ali Kousa entitled, "A Double Dwell Frequency Synchronization Scheme For OFDM Systems," submitted in January 2015. Thesis advisor is Dr. Mohamed El-Tarhuni. Available are both soft and hard copies of the thesis.
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| التنسيق: | doctoralThesis |
| منشور في: |
2015
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://hdl.handle.net/11073/7757 |
| الوسوم: |
إضافة وسم
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| _version_ | 1864513444858822656 |
|---|---|
| author | Kousa, Nour Ali |
| author_facet | Kousa, Nour Ali |
| author_role | author |
| dc.contributor.none.fl_str_mv | El-Tarhuni, Mohamed |
| dc.creator.none.fl_str_mv | Kousa, Nour Ali |
| dc.date.none.fl_str_mv | 2015-04-13T05:51:23Z 2015-04-13T05:51:23Z 2015-01 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | 35.232-2015.06 http://hdl.handle.net/11073/7757 |
| dc.language.none.fl_str_mv | en_US |
| dc.subject.none.fl_str_mv | Orthogonal Frequency Division Multiplexing (OFDM) Synchronization Double Dwell System Carrier Frequency Offset Inter Carrier Interference Mean Square Error Symbol Error Rate Orthogonal frequency division multiplexing |
| dc.title.none.fl_str_mv | A Double Dwell Frequency Synchronization Scheme For OFDM Systems |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/doctoralThesis |
| description | A Master of Science thesis in Electrical Engineering by Nour Ali Kousa entitled, "A Double Dwell Frequency Synchronization Scheme For OFDM Systems," submitted in January 2015. Thesis advisor is Dr. Mohamed El-Tarhuni. Available are both soft and hard copies of the thesis. |
| format | doctoralThesis |
| id | aus_4617a0d6b380b4918c29420a5fe6bbfd |
| identifier_str_mv | 35.232-2015.06 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/7757 |
| publishDate | 2015 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | A Double Dwell Frequency Synchronization Scheme For OFDM SystemsKousa, Nour AliOrthogonal Frequency Division Multiplexing (OFDM)SynchronizationDouble Dwell SystemCarrier Frequency OffsetInter Carrier InterferenceMean Square ErrorSymbol Error RateOrthogonal frequency division multiplexingA Master of Science thesis in Electrical Engineering by Nour Ali Kousa entitled, "A Double Dwell Frequency Synchronization Scheme For OFDM Systems," submitted in January 2015. Thesis advisor is Dr. Mohamed El-Tarhuni. Available are both soft and hard copies of the thesis.Orthogonal Frequency Division Multiplexing (OFDM) is being used in many recent communication systems to cope with the demand for high data rate applications. It provides a significant improvement in the bandwidth efficiency with simple equalization at the receiver. ODFM systems provide high immunity against multipath fading and inter symbol interference (ISI) since the high data rate stream is divided among narrow overlapping but orthogonal subcarriers. However, OFDM requires accurate timing and frequency synchronization to preserve the orthogonality between subcarriers and maintain acceptable performance. Achieving accurate synchronization is a challenging task in multicarrier systems such as OFDM. It is noticed that frequency synchronization is more critical in OFDM than timing synchronization since a small frequency offset can destroy the orthogonality among the subcarriers causing inter-carrier interference (ICI), which results in serious performance degradation. In this thesis, the effect of frequency offset on OFDM system performance is investigated and a new synchronization scheme based on the Double Dwell System (DDS) is proposed. In DDS, the frequency offset estimation is carried over two stages: a coarse estimate is obtained over the first stage followed by a fine estimate in the second stage. The system performance is evaluated in terms of the mean square error (MSE) and symbol error rate (SER) and is compared to the conventional Single Dwell System (SDS). Simulation results show a significant performance improvement in the proposed method over SDS. Other results are presented in this thesis such as interference impact, pilot symbol design, optimization of search window and step size, and mitigation of fading effects.College of EngineeringDepartment of Electrical EngineeringMaster of Science in Electrical Engineering (MSEE)El-Tarhuni, Mohamed2015-04-13T05:51:23Z2015-04-13T05:51:23Z2015-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdf35.232-2015.06http://hdl.handle.net/11073/7757en_USoai:repository.aus.edu:11073/77572025-06-26T12:37:03Z |
| spellingShingle | A Double Dwell Frequency Synchronization Scheme For OFDM Systems Kousa, Nour Ali Orthogonal Frequency Division Multiplexing (OFDM) Synchronization Double Dwell System Carrier Frequency Offset Inter Carrier Interference Mean Square Error Symbol Error Rate Orthogonal frequency division multiplexing |
| status_str | publishedVersion |
| title | A Double Dwell Frequency Synchronization Scheme For OFDM Systems |
| title_full | A Double Dwell Frequency Synchronization Scheme For OFDM Systems |
| title_fullStr | A Double Dwell Frequency Synchronization Scheme For OFDM Systems |
| title_full_unstemmed | A Double Dwell Frequency Synchronization Scheme For OFDM Systems |
| title_short | A Double Dwell Frequency Synchronization Scheme For OFDM Systems |
| title_sort | A Double Dwell Frequency Synchronization Scheme For OFDM Systems |
| topic | Orthogonal Frequency Division Multiplexing (OFDM) Synchronization Double Dwell System Carrier Frequency Offset Inter Carrier Interference Mean Square Error Symbol Error Rate Orthogonal frequency division multiplexing |
| url | http://hdl.handle.net/11073/7757 |