1 / 6

a) What is the duration of a single bit. c ) What is the duration of a single symbol

A Frequency Hopping Spread Spectrum (FHSS) system employs a total bandwidth of Ws = 400 MHz and an individual channel bandwidth of 100Hz. What is the minimum number of PN bits required for each frequency hop.

greg
Download Presentation

a) What is the duration of a single bit. c ) What is the duration of a single symbol

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A Frequency Hopping Spread Spectrum (FHSS) system employs a total bandwidth of Ws = 400 MHz and an individual channel bandwidth of 100Hz. What is the minimum number of PN bits required for each frequency hop.

  2. A FHSS system uses M-FSK. The data to be transmitted and the PN sequence are given below. If the data rate is 3 Kbps and the Baud Rate is 1Ksymb/s; and the PN sequence bit rate is 2 Kbps with a hop occurring every 2 bits. a) What is the duration of a single bit. c) What is the duration of a single symbol d) What type of MFSK is being used (value of M) e) How many different frequencies are going to be used

  3. Draw the complete FHSS distribution (t/f diagram using the table provided) DATA: 001110111111110010000011101101110111 PN: 011011011000001011011011

  4. A communications system is using FHSS to transmit a bitstream. The bit-rate is twice the PN sequence rate. If the bit-rate is 4 kbps, and the received sequence of frequencies is • Find the PN sequence rate b) Find the bit-stream if the it is being transmitted using 16-FSK with a jump in frequency occurring every 1 ms. (note that the frequencies start with f0,, and this frequency is used to transmit a data symbol equivalent to 0 when the PN symbol is also 0. (12 marks)

More Related