HARQ Chase-Combining Gain

Problem

Return the SNR gain in dB from coherently combining num_copies identical HARQ retransmissions:

gain_db = 10 * log10(num_copies)

Hint

Each doubling of the number of copies adds about 3 dB.

case 1

in: [1]

expected: 0

case 2

in: [2]

expected: 3.010299956639812

case 3

in: [4]

expected: 6.020599913279624

case 4

in: [10]

expected: 10

Starter codePython

import math
def harq_combining_gain_db(num_copies):
    # Your code here
    pass

4 test cases · run your code against them in the editor