Characterization of Wideband Antennas for Point-to-Point Communications

fixed point property for banach algebras associated to locally compact groups

در این پایان نامه به بررسی خاصیت نقطه ثابت و خاصیت نقطه ثابت برای نیم گروههای برگشت پذیر چپ روی بعضی جبرهای باناخ از جمله جبر فوریه و جبر فوریه استیلتیس پرداخته شده است. برای مثال بیان شده است که اگر گروه یک گروه فشرده موضعی با همسایگی فشرده برای عنصر همانی که تحت درونریختی ها پایاست باشد آنگاه جبر فوریه و جبر فوریه استیلتیس دارای خاصیت نقطه ثابت برای نیم گروه های برگشت پذیر چپ است اگر و تنها ا...

Point-to-Point versus Mobile Wireless Communication Channels 1.1 BANDPASS MODEL FOR POINT-TO-POINT COMMUNICATIONS

Most point-to-point communication links (e.g., the telephone line channel, fixed microwave channels, etc.) are well-modeled using a bandpass additive noise system model of the form shown in Figure 1.1. All the signals in this model are written with “tildas” which will be dropped in the complex baseband representation of the following section. A more detailed description of the link model is as ...

Shannon-Kotel'nikov Mappings for Analog Point-to-Point Communications

In this paper an approach to joint source-channel coding (JSCC), named Shannon-Kotel’nikov mappings (SKmappings), is presented. SK-mappings are (piecewise) continuous direct source-to-channel mappings operating directly on amplitude continuous discrete time signals. A theory for calculating and categorizing the end-to-end distortion when using SK-mappings for communication is presented. The the...

Delay performance of cognitive radio networks for point-to-point and point-to-multipoint communications

In our paper published in [1], the delay performance of cognitive radio networks for point-to-point and point-to-multipoint communications have been studied. In this report, additional numerical results are provided to give more insights into the impact of system parameters on the delay performance of the considered cognitive radio network scenarios.

Expressiveness of Point-to-Point versus Broadcast Communications