Dikgen frekans bölmeli çoklu erişim sistemlerinde telsiz erişim terminallerinin işbirliği
Author
Tokel, Turgut Barış
Aktaş, Defne
Date
2009-04Source Title
IEEE 17th Signal Processing and Communications Applications Conference, SIU 2009
Publisher
IEEE
Pages
321 - 324
Language
Turkish
Type
Conference PaperItem Usage Stats
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Abstract
Gelecek nesil kablosuz iletişim sistemlerinde öngörülen veri hızlarına ulaşabilmek için bu sistemlerde frekans yeniden kullanım oranının 1 olmasına ihtiyaç¸ vardır, bu ise özellikle hücre sınırlarındaki kullanıcıların önemli ölçüde hücreler arası girişime maruz kalmalarına neden olur. Telsiz erişim terminalleri arasında işbirliği hücreler arası girişimin azaltılmasında önemli bir rol oynamaktadır. Bu bildiride çok hücreli, çok girdili çok çıktılı, dikgen frekans bölmeli çoklu erişim sistemlerinde telsiz erişim terminallerinden kullanıcılara işbirlikli veri iletimi problemini ele alıyoruz. Telsiz erişim terminallerinin aralarında kısıtlı ileti paylaşımı ile çizelgeleme ve veri iletimi yaptıkları etkin bir işbirlikli algoritma öneriyoruz. Achieving the targeted data rates for next generation wireless communication systems requires using frequency reuse ratio 1 in these systems, but this in turn results in significant intercell interference observed especially by the users near cell edges. Cooperation between the base stations plays an important role in reducing the intercell interference. In this paper, we consider the problem of cooperative data transmission from the base stations to the users in multicellular multiple input multiple output (MIMO) orthogonal frequency division multiple access (OFDMA) systems. We propose an efficient cooperative scheduling and data transmission scheme, requiring limited information exchange between the base stations. ©2009 IEEE.
Keywords
Base station cooperationCell edges
Cooperative scheduling
Data rates
Data transmission
Frequency re-use
Intercell interference
Limited information
Multiple input multiple output
Next-generation wireless communications
Orthogonal frequency division multiple access systems
Base stations
Cell membranes
Cellular radio systems
Cellular telephone systems
Communication systems
Frequency division multiplexing
Global system for mobile communications
Mobile computing
Radio interference
Signal processing
Telecommunication networks
Transmissions
Frequency division multiple access
Permalink
http://hdl.handle.net/11693/28708Published Version (Please cite this version)
http://dx.doi.org/10.1109/SIU.2009.5136397Collections
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