A study of Trade-off between Opportunistic Resource Allocation and Interference Alignment in Femtocell Scenarios
| العنوان: | A study of Trade-off between Opportunistic Resource Allocation and Interference Alignment in Femtocell Scenarios |
|---|---|
| المؤلفون: | Petar Popovski, Kei Sakaguchi, Namzilp Lertwiram |
| المصدر: | Lertwiram, N, Popovski, P & Sakaguchi, K 2012, ' A study of Trade-off between Opportunistic Resource Allocation and Interference Alignment in Femtocell Scenarios ', IEEE Wireless Communications Letters, s. 356-359 . https://doi.org/10.1109/WCL.2012.051712.120268Test |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | FOS: Computer and information sciences, business.industry, Computer science, Information Theory (cs.IT), Computer Science - Information Theory, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Data_CODINGANDINFORMATIONTHEORY, Interference (wave propagation), Precoding, Control and Systems Engineering, Femtocell, Wireless, Resource allocation, Fading, Electrical and Electronic Engineering, business, Heterogeneous network, Interference alignment, Computer network, Communication channel |
| الوصف: | One of the main problems in wireless heterogeneous networks is interference between macro- and femto-cells. Using Orthogonal Frequency-Division Multiple Access (OFDMA) to create multiple frequency orthogonal sub-channels, this interference can be completely avoided if each sub-channel is exclusively used by either macro- or a femto-cell. However, such an orthogonal allocation may be inefficient. We consider two alternative strategies for interference management, opportunistic resource allocation (ORA) and interference alignment (IA). Both of them utilize the fading fluctuations across frequency channels in different ways. ORA allows the users to interfere, but selecting the channels where the interference is faded, while the desired signal has a good channel. IA uses precoding to create interference-free transmissions; however, such a precoding changes the diversity picture of the communication resources. In this letter we investigate the interactions and the trade-offs between these two strategies. This paper is submitted to IEEE Wireless Communications Letters |
| وصف الملف: | application/pdf |
| اللغة: | Danish |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75e4eddd106e4501c0cf2443958081bbTest https://vbn.aau.dk/ws/files/72734895/2012_IEEE_WCL_Namzilp_Petar_Kei.pdfTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....75e4eddd106e4501c0cf2443958081bb |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |