一种基于OFDMA中继系统的无线资源调度方案  

Wireless resource scheduling scheme based on OFDMA for relay enhanced cellular system

作　　者：王兆丰[1] 王斌[1,2] 范玉洁[1] 孟琬婷 王文鼐[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]南京邮电大学宽带无线通信与传感网技术教育部重点实验室,江苏南京210003

出　　处：《南京邮电大学学报（自然科学版）》2015年第3期81-88,共8页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家自然科学基金(61372125;61401234);江苏省科技支撑计划(工业)项目(BE2013019);南京邮电大学宽带无线通信与传感网技术教育部重点实验室开放研究基金(NYKL201108);江苏高校优势学科建设工程(信息与通信工程)资助项目

摘　　要：在下一代蜂窝网络中,中继以其特有的优势被广泛地应用于无线通信系统。为了提高基于OFDMA的中继系统的吞吐量和无线资源利用率,文中提出了一种新型中继系统无线资源调度方案。在第二跳链路分配资源块时,该方案不仅考虑中继用户,同时也将直传用户考虑在内,在保证中继用户公平性的前提下,提高了直传用户的公平性。理论和仿真分析表明:与不使用中继的蜂窝系统和一些已有的传统中继系统资源调度方案相比,在保证一定用户公平性的前提下,该方案提高了系统的吞吐量和频谱效率。In the next-generation cellular networks, with its unique relay technology is widely applied to wireless communication systems. To improve the throughput and utilization of radio resources for relay systems based on OFDMA, this paper proposes a novel radio resource scheduling scheme for relay system. When the allocating resource blocks in the second jump, the scheme considers relay users and di- rect users. Under the premise of ensuring the fairness of the relay users, the scheme also improves the faimess of direct users. The theoretical analysis and the simulation show that compared with some existing conventional resource scheduling schemes of relay systems and resource scheduling in the system without the use of relay, on the premise of guaranteeing certain user fairness, the scenario can improve the throughout and the spectrnm effieienev of the system.

关 键 词：OFDMA 中继 无线资源调度 比例公平 吞吐量 

分 类 号：TN925[电子电信—通信与信息系统]