AI SearchThe peak to average power ratio reduction in OFDM systems (Record no. 86059)
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| fixed length control field | 03798nas|a2200481 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818171352.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 030926s2002 th u m rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11900350 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.TC-02-19 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Parames Foomooljareon |
| 245 14 - TITLE STATEMENT | |
| Title | The peak to average power ratio reduction in OFDM systems |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2002 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 58 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. TC-02-19 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 2002 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Orthogonal Frequency Division Multiplexing or OFDM is a form of multi-carrier modulation technique. High spectral efficiency, robustness to channel fading, immunity to impulse interference, uniform average spectral density, capability of handling very strong echoes and less non linear distortion are among the favorite properties of OFDM. Even though there are many advantages of OFDM, it has two main drawbacks: high Peak to Average Power Ratio (PAPR) and frequency offset. In this thesis, the issue of PAPR reduction in OFDM is discussed. The effect of modulation schemes on PAPR is illustrated at the beginning of the thesis. Two new algorithms are proposed to reduce the PAPR. The first algorithm, Lookup Table Approach, is carried out by selecting the input sequences properly using a lookup table. The second algorithm, Envelope Scaling Approach, is to scale the input envelope for some subcarriers before they are transformed to the time domain by Inverse Fast Fourier Transform (IFFT). Simulation results show that PAPR can be reduced significantly with both schemes. The BER performance for multipath fading channel of the proposed schemes is insignificantly different when comparing to adaptive Partial Transmitted Sequence (PTS). The costs of the proposed schemes are information rate in the Lookup Table approach and the complexity in the Envelope Scaling Approach respectively. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Coding theory |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Modulation theory |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Fernando, W.A.C., |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ahmed, Kazi Mohiuddin, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Erke, Tapio J., |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Royal Thai government Fellowship, |
| Relator term | Scholarship donor |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Advance Info Service Plc., |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. TC-02-19 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B07581">http://203.159.5.9/ait-thesis/detail.php?q=B07581</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11900350 |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240703 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 030926 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 4 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120809958 |
| CREATED | CREATED : 2002-04-29 |
| RECORD Id | RECORD # : i12356815 |
| LPATRON | LPATRON : 1024601 |
| LCHKIN | LCHKIN : 2013-09-23 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120809966 |
| CREATED | CREATED : 2002-04-29 |
| RECORD Id | RECORD # : i12356827 |
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| LCHKIN | LCHKIN : 2009-09-17 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160044912 |
| CREATED | CREATED : 2016-03-03 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050211033419 |
| CREATED | CREATED : 2021-04-30 |
| RECORD Id | RECORD # : i13341455 |
| LPATRON | LPATRON : 0 |
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| Barcode | Barcode : 30050211032338 |
| CREATED | CREATED : 2021-01-11 |
| RECORD Id | RECORD # : i1335338x |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.TC-02-19 | 30050120809958 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.TC-02-19 | 30050120809966 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.TC-02-19 | 30050160044912 | 18/08/2026 | 18/08/2026 | 40-Archives | ||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | 50.00 | AIT Thesis no.TC-02-19 | 30050211033419 | 18/08/2026 | 3 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | 50.00 | AIT Thesis no.TC-02-19 | 30050211032338 | 18/08/2026 | 4 | 18/08/2026 | 20-AIT Publication |