Is Balaji the only option? No. If the PDF remains elusive, these textbooks cover the same syllabus and are often easier to find legally as e-books.
The initial chapters cover the axiomatic foundations of probability. Topics include: Probability And Queuing Theory G. Balaji Pdf
This post breaks down what this textbook covers, why students swear by it, and how to find study resources. Why This Book is a Student Favorite Is Balaji the only option
You will find many websites claiming to offer the PDF (e.g., Academia.edu, Scribd, various "free textbook" aggregators). However, be aware: why students swear by it
Understanding the theory allows engineers to optimize physical and digital architectures.
: The author includes free solved university questions, which are essential for mastering the complex mathematical formulations required.