一種多無(wú)線(xiàn)電系統(tǒng)中基于公平性和精細(xì)化帶寬分配的資源分配算法
doi: 10.11999/JEIT140339 cstr: 32379.14.JEIT140339
基金項(xiàng)目:
國(guó)家自然科學(xué)基金(61271235)，東南大學(xué)國(guó)家移動(dòng)通信重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金(2011D07)和江蘇省工業(yè)支撐計(jì)劃(NJHB2011-10)資助課題
A Resource Allocation Algorithm Based on Proportional Fairness and Refined Bandwidth Allocation for Multi-radio Systems
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摘要: 該文針對(duì)以O(shè)FDMA(Orthogonal Frequency Division Multiple Access)為多址接入方式的多無(wú)線(xiàn)電系統(tǒng)中用戶(hù)比例公平性和系統(tǒng)效率問(wèn)題進(jìn)行了研究，提出一種聯(lián)合資源分配算法，不僅保證了用戶(hù)比例公平性下系統(tǒng)的吞吐量，還充分考慮了分配的帶寬是子信道帶寬整倍數(shù)的特點(diǎn)，對(duì)分配給每個(gè)終端的帶寬進(jìn)行子信道整數(shù)倍調(diào)整。最后通過(guò)仿真對(duì)比，從系統(tǒng)吞吐量和公平性?xún)煞矫娼o出了算法的性能。
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關(guān)鍵詞:
- 多無(wú)線(xiàn)電系統(tǒng) /
- 聯(lián)合資源分配 /
- 比例公平性 /
- 子信道帶寬整數(shù)倍 /
- 最優(yōu)化
Abstract: A joint resource allocation algorithm is proposed to solve the problem of the proportional fairness and the system efficiency in multi-radio systems based on OFDMA (Orthogonal Frequency Division Multiple Access). The algorithm optimizes the system throughput under the fairness constraint, and considers that the allocated bandwidth should be integer times of the subchannel bandwidth. The bandwidth allocated to each terminal is adjusted according to this consideration. The performance of the proposed algorithm is evaluated by simulations in terms of the system throughput and the fairness. -
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