Title :
The capacity of M-ary PPM ultra-wideband communications over multipath channels
Author :
Jiang, Lei ; Wang, Yongsheng ; Guo, Jianxin
Author_Institution :
Inst. of Electron. & Inf. Syst., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
The capacity of M-ary PPM ultra-wideband communications over multipath channels is analyzed in this paper. And the closed form of the output signal-to-noise ratio (SNR) of the receiver is derived. In addition, the link budget is taken into account incorporate to the specific constraints, which are mainly the power spectrum density limitation under FCC part 15 rules. Finally, the influence of muitipath number on the capacity of M-ary PPM ultra-wideband communications is analyzed and compared to the user number. It is shown that the capacity of M-ary PPM ultra-wideband communications over multipath channels is decreased faster with the increasement of the multipath number than that with the increasement of the user number.
Keywords :
channel capacity; multipath channels; pulse position modulation; ultra wideband communication; FCC; M-ary PPM ultrawideband communication; multipath channel capacity; power spectrum density; pulse position modulation; AWGN; FCC; Fading; Intersymbol interference; Multipath channels; Pulse modulation; Signal to noise ratio; Ultra wideband communication; Ultra wideband technology; Wireless communication;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1618235
