Chapter 1 introduces the basic concepts of wireless communication systems.
第1章介绍了无线通信系统的基本概念。
MIMO/OFDM is an effective architecture for future wireless communication systems.
MIMO／OFDM是未来宽带无线通信接口的有效架构。
Therefore, OFDM has been a support technique in the 4G wideband wireless communication systems.
因此，OFDM已成为未来高速无线通信系统4G的支撑技术。
The future wireless communication systems will be ranged from global satellite systems to personal area networks.
未来的无线通信系统大到覆盖全球的卫星网，小到个人域网。
In recent years, indoor wireless communication systems and practical applications have been a very active area of research.
近年来，室内无线通讯系统和实际应用成为研究的热门领域。
MIMO has been widely used in many wireless communication systems like WLAN, Wimax and LTE due to its outstanding advantages.
由于MIMO系统多入多出的特点，传统的无线通信测试方法很难满足测试要求。
This thesis is concerned with the use of multiple antennas at the transmitter and receiver in wireless communication systems.
本论文即在探讨于无线通讯系统中，同时在传输端及接收端使用多根天线情况下的相关研究。
Power amplifiers are key components in wireless communication systems, whose linearity and efficiency are always the emphases.
功率放大器是无线通信系统中一个关键的组件，其线性度和效率一直是被关注的焦点。
Antenna is the most important component in wireless communication systems. Different antennas are required for different systems.
天线是无线通信系统中的重要组成部件，不同的系统对天线的需求也不一样。
This dissertation gives a detail study on the design technique and theory of dual-band filters for wireless communication systems.
双频段滤波器也成为这些通信系统前端的重要器件。
Power amplifiers (PA) used in 3G wireless communication systems based on spread spectrum techniques must exhibit exceptional linearity.
而基于扩频技术的第三代无线通信系统中的功率放大器必须要有很好的线性性能。
Thee research results show that path loss models of backscatter RFID systems are differ from traditional wireless communication systems.
研究结果表明，反向散射RFID系统的路径损耗模型和传统无线通信系统的路径损耗模型有所区别。
A downlink power allocation scheme was developed to improve the spectral efficiency of distributed wireless communication systems (DWCS).
为了提高分布式无线通信系统(DWCS)的频谱效率，提出了一种下行功率分配算法。
Mining moving sequential patterns has great significance for effective and efficient location management in wireless communication systems.
在移动通信环境中，移动序列模式挖掘对于有效的提高位置管理的服务质量具有重大的意义。
Convolutional encoding is one of encoding methods commonly used in the deep space communication systems and the wireless communication systems.
卷积编码是深空通信系统和无线通信系统中常用的一种编码方式。
Therefore, the time-hopping sequences 'properties of the pros and cons directly affect the entire ultra-wideband wireless communication systems.
所以设计的跳时序列的相关性能优劣会直接影响到整个超宽带无线通信系统的好坏。
Different from other wireless communication systems, wireless sensor networks can not be added generally because of the battery-powered sensor nodes.
与其它的无线通信系统不同，在无线传感器网络中，由于传感器节点由电池供电，一般不能补充。
Antenna for wireless communication systems is an important component. Antenna performance has a direct impact of the communication system performance.
天线作为无线通信系统中的一个重要的组成部分，天线性能的好坏直接影响了通信系统的性能。
Finally a conclusion is made that projective geometry LDPC codes may be adopted as one of the key technologies in the next wireless communication systems.
最后得出结论，投影几何ld P C码将有可能作为下一代无线通信系统的一项关键技术被广泛采用。
The combination of the advantages of VMIMO and OFDMA technique is suitable for the high data rate transmission for the next wireless communication systems.
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。
There are two serious challenges in the future broadband wireless communication systems: multi-path fading in the wireless channel and spectral efficiency.
在未来的宽带无线通信系统中，存在着两个严峻的挑战：无线信道的多径衰落和频谱效率。
The signal detection in MIMO wireless communication systems ("MIMO detection") is a key problem in MIMO system-related research that can never be bypassed.
MIMO无线通信系统中的信号检测（即“MIMO检测”），是MIMO系统研究中不可回避的关键技术问题。
Space-time code indicates a new idea of providing high transmission rate in wireless communication systems and has recently received considerable attention.
空时码的提出为解决无线通信系统中的传输速率问题提供了一条新思路，目前已经成为通信研究的一个热点。
Moreover, combined with digital baseband signal processing with FPGA, we could develop various wireless communication systems on a typical hardware platform.
再结合基于FPGA的基带数字信号处理，便可实现在相同的硬件平台上开发不同的无线通信系统。
This dissertation is concerned with channel estimation in both OFDM and MIMO-OFDM wireless communication systems and adaptive modulation in MIMO-OFDM systems.
本文研究了OFDM和MIMO-OFDM无线通信系统的信道估计技术以及MIMO-OFDM系统的自适应调制技术。
The key challenge faced by the next generation of wireless communication systems is how to provide transmission of data with high speed and quality of service.
如何提供高数据速率、高服务质量的数据传输是未来无线通信系统面临的关键性挑战。
With an enormous advantage of achieving high system capacity, MIMO technique has been one of the widely used techniques in future wireless communication systems.
MIMO技术在提高无线通信系统容量和可靠性上具有的巨大优势，使其成为未来移动通信普遍采用的技术之一。
In the present market of wireless communication systems the demand of portable terminals able to satisfy the requirements of different standards is growing rapidly.
在当今的无线通信市场中，对能支持多个标准的便携式通信终端的需求正迅速增长。
In wireless communication systems, comparing with traditional radio bands, optical bands has the advantage of high transmission capacity and interference resistance.
在无线通信系统中，光频段与微波以下的射频频段相比，具有传输容量大、不易受到干扰等特殊的优点。
In this thesis, some research of the design methods and new structures, techniques and miniaturization of bandpass filter in wireless communication systems are proposed.
本文就微带带通滤波器的设计方法、新的结构和滤波器的小型化进行了分析和研究。
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