本论文主要研究的是无线网络中的协作中继资源分配问题。
This thesis focuses on the research which is in general area of resource allocation for cooperative relaying in wireless networks.
提出一种应用于中继蜂窝网络的混合型协作中继选择算法(HCRSA)。
A hybrid cooperative relay selection algorithm (HCRSA) is presented for relay based cellular networks.
在无线链路中采用协作中继，可以提高无线链路的传输速率及传输可靠性。
The use of cooperative relaying technologies can improve the transmission rate and reliability of wireless link;
在无线衰落信道环境中，协作中继是一种增加额外分集增益的有效方法，而网络编码可以用来提高网络吞吐量。
In the wireless fading channel environment, cooperative relaying is an effective way to increase additional diversity gain, and network coding can be used to increase network throughput.
当信道处于深度衰落时，该文提出了一种宽松自适应网络卷积编码协作中继方法，放松了中继参与转发的条件。
When channels are in deep fading, this paper proposes a loose adaptive network convolutional coding for cooperative relaying, relaxing the conditions of the relay participating in forwarding.
该方案的主要特征是，认知中继使用的协作机制结合了协作传输和协作中继，可以获得空间分集和频谱分集增益。
The key feature of the proposed scheme is that, the cognitive relay combines cooperative transmission and cooperative relay, as a result, both spatial diversity and spectrum diversity can be obtained.
针对无线传感器网络高能效传输要求，提出了一种基于虚拟多输入多输出（MIMO）传输的协作中继节点选择算法。
A partners choice algorithm is proposed based on cooperative multi-input multi-output(MIMO) transmission in energy-constrained sensor networks.
该文提出的中继方法稳健性好，可以自适应匹配变化的无线网络拓扑结构，并且减少了网络编码协作中继方法所需要的中继个数。
The proposed method can offer an increased robustness, adapt to the changing network topology, and reduce the number of relays required in network coding for cooperative relaying.
双方将在国际事务中继续紧密协作，相互配合，相互支持。
Both sides will continue to strengthen their cooperation, mutual coordination and assistance in internationals.
中继节点的选择是协作通信中的重要问题。
Relay selection is a crucial challenge in cooperative communication.
研究了基于非正规LDPC系统码的非理想中继协作通信系统。
The performance of irregular systematic LDPC-coded non-ideal relay cooperative communication system is studied.
由于中继节点的参与，该协议可充分利用多用户协作的空间分集和出错重传所带来的时间分集和编码增益。
As the relay node's involvement, the agreement can take full advantage of multi-user cooperative spatial diversity and the time diversity and coding gain from retransmission mechanism.
首先提出适用于上行链路的网络编码协作分集方案，核心思想就是赋予中继具有对来自不同用户的信息进行网络编码的功能。
Firstly, we propose a network-coded cooperative diversity plan on uplink, whose core idea is to give the network coding function to relay node.
针对编码协作中采用循环冗余校验(CRC)方案会降低系统传输速率的问题，提出了一种改进的门限选择中继方案。
For the rate reduction induced by using cyclic redundancy check (CRC) in coded cooperation, an improved threshold selection relaying scheme is proposed for coded cooperation.
该协作MAC协议还考虑了如何通过中继节点的选择尽量避免干扰的问题。
Moreover, this cooperative MAC layer protocol concerns how to mitigate interference problem by selecting different relay nodes.
基于分级调制的中继协作技术可以很好地利用无线信道的广播特性和中继节点的位置优势来对抗信道衰落。
Cooperation with hierarchical modulation can employ broadcasting characteristics of wireless channel and location advantage of relay node to confront fading.
多中继感知协作通信技术是无线通信领域中，利用时空分集提升网络吞吐量的热门研究方向。
It is already theoretically presented in previous work that multiple cognitive relay improves the throughput of cognitive networks by increasing diversity in both spatial and temporary domain.
该文研究双向两跳协作多中继正交频分复用(OFDM)系统的网络寿命优化问题。
The network lifetime optimization issue is investigated for bidirectional two-hop cooperative Orthogonal Frequency Division Multiplexing (OFDM) systems recruiting multiple relays.
该文研究双向两跳协作多中继正交频分复用(OFDM)系统的网络寿命优化问题。
The network lifetime optimization issue is investigated for bidirectional two-hop cooperative Orthogonal Frequency Division Multiplexing (OFDM) systems recruiting multiple relays.
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