Joint channel estimation and power allocation for cognitive WPMCM UWB system
Cognitive Radio aims adaptive and aware communication for better utilization of available communication resources. Cognitive ultra wideband (UWB) system obtains attractive features such as robustness to multipath fading, high data rate, low cost, and low power consumption. Wavelet packet based multi...
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| Format: | Article |
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Praise Worthy Prize
2011
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| _version_ | 1796857817237291008 |
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| author | Hosseini, H. Fisal, Norsheila Syed Yusof, Sharifah Kamilah |
| author_facet | Hosseini, H. Fisal, Norsheila Syed Yusof, Sharifah Kamilah |
| author_sort | Hosseini, H. |
| collection | ePrints |
| description | Cognitive Radio aims adaptive and aware communication for better utilization of available communication resources. Cognitive ultra wideband (UWB) system obtains attractive features such as robustness to multipath fading, high data rate, low cost, and low power consumption. Wavelet packet based multicarrier modulation (WPMCM) for UWB is a tempting choice due to its inherent potential to fulfill cognitive radio requirements. In this article, we survey the effect of channel fading on cognitive radio sensing mechanism through the literature, and propose an efficient pilot pattern strategy combined with power allocation to compensate the impairment from interfering primary signal and improve the system performance. Wavelet packet based energy detection is applied for spectrum analysis of cognitive WPMCM UWB, then, optimal power allocation is derived by Lagrange multiplier method to minimize the bit error rate (BER) at the receiver. Simulation results compare BER of the system under UWB channel models and verify the performance of the proposed scheme. |
| first_indexed | 2024-03-05T19:03:28Z |
| format | Article |
| id | utm.eprints-39851 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:03:28Z |
| publishDate | 2011 |
| publisher | Praise Worthy Prize |
| record_format | dspace |
| spelling | utm.eprints-398512019-03-05T01:59:06Z http://eprints.utm.my/39851/ Joint channel estimation and power allocation for cognitive WPMCM UWB system Hosseini, H. Fisal, Norsheila Syed Yusof, Sharifah Kamilah TK Electrical engineering. Electronics Nuclear engineering Cognitive Radio aims adaptive and aware communication for better utilization of available communication resources. Cognitive ultra wideband (UWB) system obtains attractive features such as robustness to multipath fading, high data rate, low cost, and low power consumption. Wavelet packet based multicarrier modulation (WPMCM) for UWB is a tempting choice due to its inherent potential to fulfill cognitive radio requirements. In this article, we survey the effect of channel fading on cognitive radio sensing mechanism through the literature, and propose an efficient pilot pattern strategy combined with power allocation to compensate the impairment from interfering primary signal and improve the system performance. Wavelet packet based energy detection is applied for spectrum analysis of cognitive WPMCM UWB, then, optimal power allocation is derived by Lagrange multiplier method to minimize the bit error rate (BER) at the receiver. Simulation results compare BER of the system under UWB channel models and verify the performance of the proposed scheme. Praise Worthy Prize 2011 Article PeerReviewed Hosseini, H. and Fisal, Norsheila and Syed Yusof, Sharifah Kamilah (2011) Joint channel estimation and power allocation for cognitive WPMCM UWB system. International Review on Computers and Software (IRECOS), 6 (4). pp. 570-575. ISSN 1828--6003 https://www.praiseworthyprize.org/latest_issues/IRECOS-latest/IRECOS_vol_6_n_4.html#Joint_Channel_Estimation_and_Power_Allocation_for_Cognitive_WPMCM_UWB_System |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Hosseini, H. Fisal, Norsheila Syed Yusof, Sharifah Kamilah Joint channel estimation and power allocation for cognitive WPMCM UWB system |
| title | Joint channel estimation and power allocation for cognitive WPMCM UWB system |
| title_full | Joint channel estimation and power allocation for cognitive WPMCM UWB system |
| title_fullStr | Joint channel estimation and power allocation for cognitive WPMCM UWB system |
| title_full_unstemmed | Joint channel estimation and power allocation for cognitive WPMCM UWB system |
| title_short | Joint channel estimation and power allocation for cognitive WPMCM UWB system |
| title_sort | joint channel estimation and power allocation for cognitive wpmcm uwb system |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| work_keys_str_mv | AT hosseinih jointchannelestimationandpowerallocationforcognitivewpmcmuwbsystem AT fisalnorsheila jointchannelestimationandpowerallocationforcognitivewpmcmuwbsystem AT syedyusofsharifahkamilah jointchannelestimationandpowerallocationforcognitivewpmcmuwbsystem |