UWB脉冲无线电通信的信道容量限制与硬件实现
Channel Capacity Limitations versus Hardware Implementation for UWB Impulse Radio Communications
摘要：
从香农信道容量出发，提出了一种基于时延扩展的多径时变信道IR-UWB信道容量。该IR-UWB信道容量是从无ISI（符号间干扰）假设和二进制调制获得的。的影响的实现被认为是对IR-UWB的信道容量。这项研究是领先的混合和主要是数字实现。在每种情况下，关键参数及其对信道容量的影响都会暴露出来：主要用于数字实现的数据转换器和用于混合实现的脉冲发生器功能。最后，从数据率的角度比较了这两种实现方式。它们的行为有关的工作频率的增加进行了研究。
英文摘要：
Starting from the Shannon channel capacity, we propose an IR-UWB channel capacity based on the delay spread for multipath time variant channels. This IR-UWB channel capacity is obtained from the no ISI (Inter Symbol Interference) assumption and for binary modulations. The impact of the kind of implementation is considered on the IR-UWB channel capacity. This study is lead for mixed and mostly digital implementation. The key parameters and theirs impacts on the channel capacity are exposed in each case: the data converters for mostly digital implementations and the pulse generator capabilities for mixed implementations. Finally, these two implementations are compared from a data rate point of view. Their behaviors regarding an increase of the operating frequency are also studied.
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