AI SearchAdaptive subchannel and power allocation for multiuser OFDM systems using buffer state information (Record no. 1635)
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| 000 -LEADER | |
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| fixed length control field | 03130nas a2200385 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817161531.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 100419s2009 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12074780 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.TC-09-11 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ho Thi Nhu Ngoc |
| 245 10 - TITLE STATEMENT | |
| Title | Adaptive subchannel and power allocation for multiuser OFDM systems using buffer state information |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2009 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 38 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. TC-09-11 |
| 500 ## - GENERAL NOTE | |
| General note | Submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Telecommunications, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 2009 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Multiuser OFDM is considered as a modulation and multiple access method for next generation wireless systems. It is being widely deployed in broadband wireless networks due to its capability to overcome the channel impairments and support high data rates. Adaptive subchannel and power allocation in the downlink of multiuser OFDM systems is presented in this thesis. The problem of maximizing the overall throughput subject to the total transmit power constraint for each user is considered. Compared to existing algorithms, the proposed algorithms is unique in trying to directly incorporate the queue size or buffer state information into the allocation decisions. Our algorithm is divided into two steps, namely subchannel assignment and power allocation. The subchannel assignment is based on not only the channel conditions but also the buffer state information of each user. In this way, the limited transmission resources can be utilized efficiently. The power allocation step is formulated as a convex optimization problem and solved by standard algorithms in Matlab. Matlab is used to simulate the multiuser OFDM system. Simulation results shows that the proposed algorithm achieves better throughput and delay performances than existing algorithms. Finally, the performance improvement obtained from the use of buffer state information is quantified. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Orthogonal frequency division multiplexing |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Poompat Saengudomlert, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Erke, Tapio J., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Rajatheva, R.M.A.P, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | AIT Fellowship, |
| 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-09-11 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B04057 ">http://203.159.5.9/ait-thesis/detail.php?q=B04057 </a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12074780 |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240329 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 100419 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120811327 |
| CREATED | CREATED : 2014-04-21 |
| RECORD Id | RECORD # : i12790825 |
| LPATRON | LPATRON : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160043393 |
| CREATED | CREATED : 2016-03-17 |
| RECORD Id | RECORD # : i1289509x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
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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 | 17/08/2026 | 50.00 | AIT Thesis no.TC-09-11 | 30050120811327 | 17/08/2026 | 3 | 17/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Thesis no.TC-09-11 | 30050160043393 | 17/08/2026 | 17/08/2026 | 40-Archives |