Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network
This paper presents the joint interference cancellation and equalization for space-time block coded (STBC) orthogonal frequency division multiplexing (STBC-OFDM) transmission over underlay cognitive radio network. In this work, pre- and post-FFT adaptive antenna array is employed at secondary user r...
| Main Authors: | , , , |
|---|---|
| Format: | Proceeding Paper |
| Language: | English |
| Published: |
2012
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/29227/ http://irep.iium.edu.my/29227/1/Pre-FFT.pdf |
| _version_ | 1848780083970441216 |
|---|---|
| author | Wan Mohd Zuferi , Wan Nadzlia Shazwanie Ramli , Nordin Mohamad, Hafizal Abdullah, Khaizuran |
| author_facet | Wan Mohd Zuferi , Wan Nadzlia Shazwanie Ramli , Nordin Mohamad, Hafizal Abdullah, Khaizuran |
| author_sort | Wan Mohd Zuferi , Wan Nadzlia Shazwanie |
| building | IIUM Repository |
| collection | Online Access |
| description | This paper presents the joint interference cancellation and equalization for space-time block coded (STBC) orthogonal frequency division multiplexing (STBC-OFDM) transmission over underlay cognitive radio network. In this work, pre- and post-FFT adaptive antenna array is employed at secondary user receiver to find optimum antenna weights that place nulls at the primary transmitters. The paper discusses the performance of using both systems in STBC-OFDM receiver and presents the optimum weight determination for beamformers based on the minimum mean square error (MMSE) criteria. Simulation results demonstrate that post-FFT is optimum in terms of maximizing signal-to-noise-and-interference power ratio (SINR) and provides a lower bit error rate (BER) under existence of several primary users. |
| first_indexed | 2025-11-14T15:28:02Z |
| format | Proceeding Paper |
| id | iium-29227 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T15:28:02Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-292272013-03-11T03:55:00Z http://irep.iium.edu.my/29227/ Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network Wan Mohd Zuferi , Wan Nadzlia Shazwanie Ramli , Nordin Mohamad, Hafizal Abdullah, Khaizuran TA Engineering (General). Civil engineering (General) This paper presents the joint interference cancellation and equalization for space-time block coded (STBC) orthogonal frequency division multiplexing (STBC-OFDM) transmission over underlay cognitive radio network. In this work, pre- and post-FFT adaptive antenna array is employed at secondary user receiver to find optimum antenna weights that place nulls at the primary transmitters. The paper discusses the performance of using both systems in STBC-OFDM receiver and presents the optimum weight determination for beamformers based on the minimum mean square error (MMSE) criteria. Simulation results demonstrate that post-FFT is optimum in terms of maximizing signal-to-noise-and-interference power ratio (SINR) and provides a lower bit error rate (BER) under existence of several primary users. 2012 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/29227/1/Pre-FFT.pdf Wan Mohd Zuferi , Wan Nadzlia Shazwanie and Ramli , Nordin and Mohamad, Hafizal and Abdullah, Khaizuran (2012) Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network. In: International Conference on Computer and Communication Engineering, ICCCE 2012, 3-5 July 2012, Kuala Lumpur. |
| spellingShingle | TA Engineering (General). Civil engineering (General) Wan Mohd Zuferi , Wan Nadzlia Shazwanie Ramli , Nordin Mohamad, Hafizal Abdullah, Khaizuran Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network |
| title | Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network |
| title_full | Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network |
| title_fullStr | Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network |
| title_full_unstemmed | Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network |
| title_short | Pre-FFT and post-FFT adaptive antenna array for OFDM transmission over cognitive radio network |
| title_sort | pre-fft and post-fft adaptive antenna array for ofdm transmission over cognitive radio network |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://irep.iium.edu.my/29227/ http://irep.iium.edu.my/29227/1/Pre-FFT.pdf |