The 13 chapters cover signal analysis, Fourier transforms, analog modulation, PCM, data transmission, probability, and advanced topics like CDMA, OFDM, and error-correcting codes.
While I won't be sharing any copyrighted materials, I can suggest some legitimate ways to access the book:
Downloading a pirated PDF is a violation of intellectual property rights.
If you are on a tight budget, there are legitimate ways to get the content you need without risking your digital security:
like 5G and Wi-Fi. Alex first encounters several unofficial "free" sites, but quickly learns that downloading copyrighted material without permission is illegal and potentially risky for their device.