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首页> 外文会议>2012 International Conference on Wireless Communications amp; Signal Processing >An efficient resource allocation algorithm with carrier aggregation in LTE Advanced systems
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An efficient resource allocation algorithm with carrier aggregation in LTE Advanced systems

机译：LTE Advanced系统中具有载波聚合的高效资源分配算法

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摘要

To achieve a higher data transmission rate, carrier aggregation (CA) technology has been included in the LTE Advanced standard. Allocating resources with CA is a crucial and challenging task due to the different types of user equipment (UE) that have different bandwidth capacities and operate under the same base station (BS). We have formulated the downlink resource allocation problem joining both carrier component (CC) allocation and resource block (RB) allocation to achieve proportional fairness in the long term. We also develop a maximum system utility (MSU) algorithm. Each time this algorithm tries to allocate the best CC to an narrow-band UE in which the number of CCs it is assigned does not exceed the number of CCs supported, maximizing the total utility until it can no longer grow. Importantly, NB UEs which can support more than one CCs are considered in this paper. Simulation results show that the proposed algorithm can significantly improve total throughput compared with the existing algorithm both with and without fairness consideration.
机译：为了实现更高的数据传输速率，LTE Advanced标准中已包含载波聚合（CA）技术。由于具有不同带宽容量并在同一基站（BS）下运行的不同类型的用户设备（UE），使用CA分配资源是一项至关重要且具有挑战性的任务。我们制定了将载波分量（CC）分配和资源块（RB）分配结合在一起的下行链路资源分配问题，以实现长期的比例公平。我们还开发了最大系统实用程序（MSU）算法。每次此算法尝试将最佳CC分配给窄带UE，在窄带UE中，分配给它的CC数量不超过支持的CC数量，从而使总效用最大化，直到不再增长。重要的是，本文考虑了可以支持多个CC的NB UE。仿真结果表明，与现有算法相比，无论是否考虑公平性，该算法都能显着提高总吞吐量。

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