Fourier analysis is a method of representing general functions by approximate sum of simple trigonometric functions. The method is named after mathematician Jean Baptiste Joseph Fourier who formulated and proved the Fourier series. Fourier analysis is used in electronics, communications and acoustics.The Fourier series decomposes a periodic function as a ... Read More

Advanced mobile phone system (AMPS) was a standard for analog cellular phone system developed by Bell Labs and officially introduced by AT&T in 1983.FeaturesIt is an analog system based on the initial electromagnetic spectrum allocation for cellular service by the Federal Communications Commission.It uses frequency division multiple access (FDMA) for ... Read More

Message switching is a connectionless network switching technique where the entire message is routed from the source node to the destination node, one hop at a time. It was a precursor of packet switching.ProcessPacket switching treats each message as an individual unit. Before sending the message, the sender node adds ... Read More

Circuit switching is a connection-oriented network switching technique. Here, a dedicated route is established between the source and the destination and the entire message is transferred through it.Phases of Circuit Switch ConnectionCircuit Establishment : In this phase, a dedicated circuit is established from the source to the destination through a ... Read More

The telephone system model is organized as a highly redundant, multilevel hierarchy. It comprises of the following components −Telephone of the subscriber or end userEnd office − Local central office directly connected to end user at a distance of 1 – 10km.Local loop − A two-way connection between the telephone ... Read More

Medium earth orbit (MEO) satellites lie between the two Van Allen Belts. MEOs are also called Intermediate Circular Orbits (ICOs).The altitudes of these satellites range from 2, 000 km to 35, 000 km, i.e. above the low earth orbits and below the geosynchronous orbits. The orbital periods of MEOs range ... Read More

This is a C++ program to generate a sequence of N characters for a given specific case.AlgorithmsBegin    function GenerateSequence() generate a Sequence of N Characters for a Given Specific Case:       Use rand() for generating random indexes.       Store the first character directly into the ... Read More

This is a C++ program to implement the Binary Counting Method to generate subsets of a set.AlgorithmsBegin    Take the array elements as input.    function BinaryCounting():       Calculate subset by r = pow(2, n) // here n = number of elements.       Generate binary numbers ... Read More

This is a C++ program to generate all possible subsets with exactly k elements in each subset.AlgorithmsBegin    function PossibleSubSet(char a[], int reqLen, int s, int currLen, bool check[], int l):    If currLen > reqLen    Return    Else if currLen = reqLen       Then print the ... Read More

This is a C++ program to generate all pairs of subsets, whose union make the Set.AlgorithmsBegin    function UnionSet():    Arguments:       a[] = an array.       n = number of elements.       Body of the function:       1) Generate binary code ... Read More