标题： 全双工认知无线电网络的多信道MAC协议，具有优化的接入控制和负载均衡 显示英文标题

标题： Multi-Channel MAC Protocol for Full-Duplex Cognitive Radio Networks with Optimized Access Control and Load Balancing

摘要： 在本文中，我们提出了一种多信道全双工介质访问控制（MAC）协议，用于认知无线电网络（MFDC-MAC）。我们的设计利用了全双工（FD）次级用户（SUs）可以同时进行频谱感知和接入的事实，并采用随机动态信道选择来实现信道间的负载平衡，以及在每个可用信道上使用标准退避机制来解决竞争问题。然后，我们开发了一个数学模型来分析所提出的MFDC-MAC协议的吞吐量性能。此外，我们研究了协议配置优化以最大化网络吞吐量，在此我们表明该优化可以分为两个步骤，即在每个信道上优化接入和传输参数，以及优化用户的信道选择概率。这种优化旨在实现FD收发器的有效自干扰管理、感知开销控制以及信道间的负载平衡。数值结果展示了不同协议参数的影响以及参数优化对吞吐量性能的重要性，以及与传统设计相比，所提出设计的显著性能提升。 显示英文摘要

摘要： In this paper, we propose a multi-channel full-duplex Medium Access Control (MAC) protocol for cognitive radio networks (MFDC-MAC). Our design exploits the fact that full-duplex (FD) secondary users (SUs) can perform spectrum sensing and access simultaneously, and we employ the randomized dynamic channel selection for load balancing among channels and the standard backoff mechanism for contention resolution on each available channel. Then, we develop a mathematical model to analyze the throughput performance of the proposed MFDC-MAC protocol. Furthermore, we study the protocol configuration optimization to maximize the network throughput where we show that this optimization can be performed in two steps, namely optimization of access and transmission parameters on each channel and optimization of channel selection probabilities of the users. Such optimization aims at achieving efficient self-interference management for FD transceivers, sensing overhead control, and load balancing among the channels. Numerical results demonstrate the impacts of different protocol parameters and the importance of parameter optimization on the throughput performance as well as the significant performance gain of the proposed design compared to traditional design.