CSE213-300: Assignment 1
1. There are 7 records, 21-5Z to 31-7P, and there are 5 elds per record, PROJECT_CODE to
2. There is only a managers address, not an individual eld for city. To solve this problem, you
13.1: What geometric shape is used in celluar system design?
13.7: Explain the difference between open-loop and closed-loop power control.
A: An open loop control system is the system, in which the desired output is only de
7.3. Indicate three major advantages of digital transmission over analog transmission
7.9: What are the differences among AM, PM and FM?
A: Amplitude Modulation(AM) is the modulation technique in which carrier amplitude
varies based on analog baseband information signal to be transmitted using wireless device.one
Digital Communication H.W. 1
Review Questions: 2.2 and 2.4
2.2. What are three important characteristics of a periodic signal?
A: Three important characteristics of a periodic signal are amplitude, frequency, and phase.
2.4. What is the relationship betwe
8.3: What are the main strengths of OFDM?
A: 1. makes efficient use of the spectrum by allowing overlap. 2. By dividing the channel into
narrowband flat fading sub channels, OFDM is more resistant to frequency selective fading than single
Assignment #2 Application Layer
This assignment is to be done individually. Please use complete sentences for any questions that ask for
explanations. The due date is posted in BB.
1. (9 points) A Drexel student types in www.ed.ac.uk to learn more about t
This assignment is to be done individually. Please use complete sentences for your responses.
Note that you will need to use the textbook as a reference guide to answer many of the questions. For a few of the
questions you may also require
CSE213-300: Assignment 3
1. Par:al completeness is when a supertype does not need to use one of the subtypes,
whereas total completeness must use at least one. An example of par:al completeness: an
employee can be a student or teacher bu
CSE213-300: Assignment 2
17. Each STORE (1,1) employs zero to many (0,N) EMPLOYEEs. Each EMPLOYEE (1,1) has zero to
many (0,N) DEPENDENTs. Each STORE (1, 1) places zero to many (0,N) ORDERs. Each ORDER
(1,1) contains many (1, N)
9.1: What is the relationship between the bandwidth of a signal before and after it has been encoded
using spread spectrum?
A: The bandwidth is wider after the signal has been encoded using spread spectrum.
9.5: What is direct sequence spr