Based on the Wimax 802.16e technology, the handoff process has been simulated with one mobile node and three basestations. We found that the speed of traveling has impact on the handoff latency.

Next generation mobile networks are expected to provide service to intelligent terminals with different categories. To fully optimize wireless networks, we argue that applications demands should be taken into account given the current channel and net

有关GSM 系统仿真 。主要是参数的设置和影响 -For GSM system simulation. The main impact of the parameter settings and

计算例如wacmd信号，多音信号等需要考虑带外影响的信号的的ACPR-The calculation example wacmd signal, multi-tone signal need to consider the signal band impact ACPR

We formulate a scheduling problem that takes into account different hardware delays experienced by the secondary users (SUs) in a centralized cognitive radio network (CRN) while switching to different frequency bands. We propose a polynomial-time