精华全集 冲广角币 获取广角币的更多方法
【名称】：Principles of Communication Systems Simulation with Wireless Applications
【作者】：William H. Tranter, K. Sam Shanmugan,Theodore S. Rappaport,Kurt L. Kosbar
【格式】：pdf
【页数】：800
【语言】：English
【摘要或目录】：This book is a result of the recent rapid advances in two related technologies: communications
and computers. Over the past few decades, communication systems
have increased in complexity to the point where system design and performance
analysis can no longer be conducted without a significant level of computer support.
Many of the communication systems of fifty years ago were either power or
noise limited. A significant degrading effect in many of these systems was thermal
noise, which was modeled using the additive Gaussian noise channel. Many modern
communication systems, however, such as the wireless cellular system, operate in
environments that are interference and bandwidth limited. In addition, the desire
for wideband channels and miniature components pushes transmission frequencies
into the gigahertz range, where propagation characteristics are more complicated
and multipath-induced fading is a common problem. In order to combat these effects,
complex receiver structures, such as those using complicated synchronization
structures, demodulators and symbol estimators, and RAKE processors, are often
used. Many of these systems are not analytically tractable using non-computer
based techniques, and simulation is often necessary for the design and analysis of
these systems.
The same advances in technology that made modern communication systems
possible, namely microprocessors and DSP techniques, also provided us with highspeed
digital computers. The modern workstation and personal computer (PC)
have computational capabilities greatly exceeding the mainframe computers used
just a few years ago. In addition, modern workstations and PCs are inexpensive
and therefore available at the desktop of design engineers. As a result, simulationbased
design and analysis techniques are practical tools widely used throughout the
communications industry.
As a result, graduate-level courses dealing with simulation-based design and
analysis of communication systems are becoming more common. Students derive
a number of benefits from these courses. Through the use of simulation, students
in communications courses can study the operating characteristics of systems that
are more complex and more real world than those studied in traditional communications
courses since, in traditional courses, complexity must be constrained to
ensure that analyses can be conducted. Simulation allows system parameters to
be easily changed, and the impact of these changes can be rapidly evaluated by
using interactive and visual displays of simulation results. In addition, an understanding
of simulation techniques supports the research programs of many graduate
students working in the communications area. Finally, students going into the communications
industry upon graduation have skills needed by industry. This book is
intended to support these courses.
（带有附件时请填写以上必填内容<缺少部分可注明‘不详’>，否则不予金币奖励，本行请删除）
[ 本帖最后由 yellowpages 于 2008-4-16 22:24 编辑 ]
