OFDMA造句

1、Study of OFDMA for BWS;

2、A Frequency Reuse Scheme for OFDMA Systems

3、Application Design of Relay in OFDMA System

4、OFDMA Interference Depression and Sub-Carrier Assignment;

5、Relay selection in OFDMA cellular relaying networks

6、A Semi-static Interference Coordination Algorithm of OFDMA Systems

7、Outage Capacity Optimization for OFDMA systems Based on Prediction

8、Simulation Study of Channel Estimation in IEEE 802.16e OFDMA-Downlink

9、The Study of Cognitive User's Throughput Based on OFDMA

10、Adaptive Bandwidth and Sub-carrier Allocation for OFDMA Downlinks

11、In OFDMA, closely spaced multiple subcarriers are assigned to different users for parallel data transmission.

12、The invention discloses a dynamic fractional frequency reuse method based on an OFDMA wireless cellular network.

13、Compared with traditional single-user OFDM systems, synchronization technology for OFDMA system are more difficult.

14、The Research on Radio Resource Management Technology in Broadband OFDMA System;

15、Synchronization, Channel Estimation and Optimal Allocation Techniques for OFDMA Communication Systems;

16、Finally the system simulation results show that the proposed algorithm is robust and time efficient, and it is very feasible for OFDMA cellular systems, especially IEEE 802.20 OFDMA systems.

17、So this thesis is engaged in the research of channel estimation technology for LTE downlink OFDMA system.

18、At last, we explained the MAC scheduling architecture in TDMA mode, and proposed a scheduling scheme in OFDMA mode.

19、Recently, Orthogonal Frequency Division multiple access (OFDMA) as a new multiple access technology has received a lot of attention.

20、The second chapter describes the basic principle of the conventional OFDM and establishes a downlink OFDMA system model, which is the basis for researching synchronization technology for OFDMA system.

21、Focusing on the resource allocation problem in multi-user orthogonal frequency division multiple access (OFDMA) systems, a multi-carrier proportional fair scheduling algorithm, G-PFS, is proposed.

22、In case of single-cell OFDMA system, the study ranges from single user power allocation, multi-user subcarrier scheduling to joint subcarrier and power allocation.

23、To deal with this problem, in this paper, a novel joint power and subcarrier allocation scheme in uplink OFDMA systems is proposed based on game theory.

24、Most of the current OFDMA resource allocation algorithms targets on the spectrum utilization improvement in single system without considering the resource sharing for multisystem in the same area.

25、Secondly, a novel downlink acquisition and synchronization algorithm for IEEE 802.20 OFDMA system is proposed. The algorithm is composed of downlink frame detection and sector PN code identification.

26、在OFDMA中，相临的多个子载波被分配给不同的用户来为用户并行低速传输数据。

27、将VMIMO和OFDMA技术的优势相结合，非常适合下一代无线通信系统对高速数据传输速率的要求。

28、基于所述参考信道的传输功率来调整使用第二无线电技术（例如，OFDMA）发送的数据信道的传输功率。

29、OFDMA是根据频分多路传输系统的思想，这是一种在一个频道上传输多个数据流的方法。

30、提供了一种提高蜂窝OFDMA小区边缘用户上行链路传输效率的方法，它利用小区内扇区分集提高误比特率*能，并利用小区间分组分集降低分组重传次数。

31、采用遗传算法搜索子载波最优分*案，对多用户正交频分复用多址接入(OFDMA)系统资源分配问题进行了研究，提出了一种多载波比例公平调度算法G - PFS。

32、最后的系统*结果表明，该算法具有较高的鲁棒*和搜索效率，是适合于IEEE 802.20及其它OFDMA蜂窝系统的高效下行捕获和同步算法。

33、现有的OFDMA资源分配算法大都以提高单系统内的频谱利用率为目标，而对于同一区域内多系统间的资源共享问题未加考虑。