# Question: In a certain communication system bits are encoded into blocks

In a certain communication system, bits are encoded into blocks of length 128 bits. Error correction techniques are used such that the block will be decoded correctly as long as no more than 7 of the 128 bits are received in error. We observe that 2% of our blocks are decoded incorrectly. From Markov’s inequality, what can we say about the average number of bit errors that occur in each 128 bit block?

## Answer to relevant Questions

The received voltage in a 75 Ω antenna of a wireless communication system is modeled as a Rayleigh random variable, What does the value of the parameter σ need to be for the received power to be 10µW ? Suppose a source sends symbols from a three letter alphabet with X Ɛ {a, b, c} and Pa = 1/ 2, Pb = 1/ 4, Pc = 1/ 4 are the source symbol probabilities. (a) Determine the entropy of this source. (b) Give a source code that ...A communication system sends data in the form of packets of fixed length. Noise in the communication channel may cause a packet to be received incorrectly. If this happens, then the packet is retransmitted. Let the ...Find the first three moments of a Poisson random variable whose PMF is Let cn be the n th central moment of a random variable and µ n be its n th moment. Find a relationship between cn and µk, k = 0, 1, 2…Post your question