Stop and wait flow control protocol, Electrical Engineering

(a) Explain what asynchronous transmission is and give two advantages and two disadvantages of using this type of transmission.

(b) One of the goals of multiplexing is efficiency.

(i) Explain what is multiplexing and how does it improve system design.
(ii) Give any two applications of Frequency Division Multiplexing (FDM).
(iii) Ten signals, each requiring 4000 Hz are to be multiplexed together using

FDM. What is the minimum bandwidth of the link if there is a need for a guard band of 400 Hz between the channels to prevent interference?

(c) Explain the operation of the Stop and Wait flow control protocol and give one disadvantage of using this protocol.

(d)  Two adjacent nodes (A and B) use a  sliding window protocol  and a 3-bit sequence number. As the  ARQ  mechanism,  Go-Back-N  is used and the window size is 4. Assuming that  A transmits and B receives,  by using appropriate diagrams  and giving appropriate explanations,  show the window positions for the following succession of events:

(i) Before A sends any frames.

(ii) After A sends frames 0, 1, 2 and B acknowledges 0, 1 and the ACKs are received by A.

(iii) After A sends frames 3, 4, 5 and B acknowledges 4 and the ACK is received by A

Posted Date: 10/22/2013 5:49:13 AM | Location : United States







Related Discussions:- Stop and wait flow control protocol, Assignment Help, Ask Question on Stop and wait flow control protocol, Get Answer, Expert's Help, Stop and wait flow control protocol Discussions

Write discussion on Stop and wait flow control protocol
Your posts are moderated
Related Questions
A 6 V / 2.5 mA relay is connected in the output stage of a transistor.  The coil is made of aluminium having α = 0.004. The resistance of the coil is 600 ? at 32 o C. Calculate th

Q. Find v o in the circuit shown in Figure by using the ideal op-amp technique.

Q. Illustrate the principle of alignment? Pieces of highly permeablematerial, such as iron, situated in ambientmediumof lowpermeability, such as air, in which a magnetic field

Explain the term assembler directives. An assembler directive is a statement to provide direction to the assembler to execute the task of assembly process. These assembler dire

a. The antenna current of an AM broadcast transmitter, modulated to depth of 40% by an audio sine wave is 11 amp. It enhances to 12 amp as a result of simultaneous modulation by an

Q. Explain working of TTL NAND gate? The TTL logic family uses only transistors instead of a combination of transistors and diodes. TTL has the same high and low ranges as DTL.

Q. In a CD amplifier,given Rs =4k?, µ=50 and rd= 35k μ. Find the voltage gain Av. The voltage gain,  A v = Vo / V i = µR s / (µ+1) R s + rd = 50*4* (103 )/ (50+1)*4*103

Q. Illustrate working of Application Layer? As the highest layer in OSI reference model, application layer provides services to users of OSI environment. Layer

Q. Explain working of Single-Phase Induction Motors? For reasons of simplicity and cost, a single-phase power supply is universally preferred for fractional-horsepower motors.

general functions of time base generator