کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
459950 696295 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distributed power optimization for spectrum-sharing femtocell networks: A fictitious game approach
ترجمه فارسی عنوان
بهینه سازی توزیع قدرت برای شبکه های فتومتر توزیع طیف: رویکرد بازی فریبنده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
چکیده انگلیسی

Power control techniques are becoming increasingly important for a two-tier network, where a central macrocell is underlaid with femtocells, since cross-tier and co-tier interference severely limits network performance. In this paper, we propose a distributed power control scheme for the uplink transmission of spectrum-sharing femtocell networks based on fictitious game. Each user announces a price that reflects its sensitivity to the current interference level, and adjusts its power to maximize its utility. Power and price are updated at terminals and base stations, respectively. The scheme is proved to converge to a unique optimal equilibrium. Furthermore, we propose a simple macrocell link protection scheme, where a macro user can protect itself by increasing its price. Most importantly, we investigate the power optimization scheme proposed in frequency-selective channels based on the Stackelberg game, in which each user prices its limited power allocated to subchannels. Numerical results show that the proposed schemes are effective in resource allocation for spectrum-sharing two-tier networks.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Network and Computer Applications - Volume 37, January 2014, Pages 315–322
نویسندگان
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