4、OFDMA Interference Depression and Sub-Carrier Assignment;
8、Simulation Study of Channel Estimation in IEEE 802.16e OFDMA-Downlink
12、The invention discloses a dynamic fractional frequency reuse method based on an OFDMA wireless cellular network.
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.
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.
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.
28、基於所述參考信道的傳輸功率來調整使用第二無線電技術（例如，OFDMA）發送的數據信道的傳輸功率。
32、最後的系統*結果表明，該算法具有較高的魯棒*和搜尋效率，是適合於IEEE 802.20及其它OFDMA蜂窩系統的高效下行捕獲和同步算法。
3、Application Design of Relay in OFDMA System
9、The Study of Cognitive User's Throughput Based on OFDMA
14、The Research on Radio Resource Management Technology in Broadband OFDMA System;
19、Recently, Orthogonal Frequency Division multiple access (OFDMA) as a new multiple access technology has received a lot of attention.
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.
30、提供了一種提高蜂窩OFDMA小區邊緣用戶上行鏈路傳輸效率的方法，它利用小區內扇區分集提高誤比特率*能，並利用小區間分組分集降低分組重傳次數。
2、A Frequency Reuse Scheme for OFDMA Systems
10、Adaptive Bandwidth and Sub-carrier Allocation for OFDMA Downlinks
17、So this thesis is engaged in the research of channel estimation technology for LTE downlink OFDMA system.
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.
31、採用遺傳算法搜尋子載波最優分*案，對多用戶正交頻分複用多址接入(OFDMA)系統資源分配問題進行了研究，提出了一種多載波比例公平調度算法G - PFS。
6、A Semi-static Interference Coordination Algorithm of OFDMA Systems
15、Synchronization, Channel Estimation and Optimal Allocation Techniques for OFDMA Communication Systems;
26、在OFDMA中，相臨的多個子載波被分配給不同的用戶來爲用戶並行低速傳輸數據。
1、Study of OFDMA for BWS;
13、Compared with traditional single-user OFDM systems, synchronization technology for OFDMA system are more difficult.
27、將VMIMO和OFDMA技術的優勢相結合，非常適合下一代無線通信系統對高速數據傳輸速率的要求。
7、Outage Capacity Optimization for OFDMA systems Based on Prediction
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.
11、In OFDMA, closely spaced multiple subcarriers are assigned to different users for parallel data transmission.
33、現有的OFDMA資源分配算法大都以提高單系統內的頻譜利用率爲目標，而對於同一區域內多系統間的資源共享問題未加考慮。
29、OFDMA是根據頻分多路傳輸系統的思想，這是一種在一個頻道上傳輸多個數據流的方法。
5、Relay selection in OFDMA cellular relaying networks
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.
18、At last, we explained the MAC scheduling architecture in TDMA mode, and proposed a scheduling scheme in OFDMA mode.
