Energy consumption index minimized resource allocation in hybrid energy multiuser OFDM system with distributed antennas
نویسندگان
چکیده
منابع مشابه
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دراین پروژه به بررسی مدل سازی خشک کردن مواد غذایی با استفاده از هوای خشک در خشک کن آزمایشگاهی نوع سینی دار پرداخته شده است. برای آنالیز انتقال رطوبت در طی خشک شدن به طریق جابجایی، یک مدل لایه نازک برای انتقال رطوبت، مبتنی بر معادله نفوذ فیک در نظر گفته شده است که شامل انتقال همزمان جرم و انرژی بین فاز جامد و گاز می باشد. پروفایل دما و رطوبت برای سه نوع ماده غذایی شامل سیب زمینی، سیب و موز در طی...
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The performance of multicarrier systems can be enhanced by the water filling strategy, in which different rates and powers are allocated to subcarriers. However, the induced large signalling overhead leads to less transmission efficiency. To suppress this effect this article proposes an alternative strategy by dynamically assigning the same rate to each subcarrier per user. First, we quantify t...
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In this paper, a unifying framework for orthogonal frequency division multiplexing (OFDM) multiuser resource allocation is presented. The isolated seeming problems of maximizing a weighted sum of rates for a given power budget P̄ and minimizing sum power for given rate requirements R̄ can be interpreted jointly in this framework. To this end we embed the problems in a higher dimensional space. Ba...
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Multiuser orthogonal frequency division multiplexing (MU-OFDM) is a promising technique for achieving high downlink capacities in future cellular and wireless LAN systems. The sum capacity of MU-OFDM is maximized when each subchannel is assigned to the user with the best channel-tonoise ratio for that subchannel, with power subsequently distributed by water-filling. However, fairness among the ...
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Abstract In cellular mobile communications the subcarriers are repeatedly used for best utilizing the assigned frequency spectrum. The assignment of channels for users is complex and involves high computation time. Wong et al [15] proposed a heuristic algorithm to achieve the suboptimal solution for sub-carrier assignment. This proposal was based on constructive assignment in real time situatio...
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ژورنال
عنوان ژورنال: ITM Web of Conferences
سال: 2018
ISSN: 2271-2097
DOI: 10.1051/itmconf/20181703015