Of course. Here is a list of high-quality English-language references on GSM call drop analysis, categorized for different needs. The list includes classic textbooks, key academic papers, and practical resources from standardization bodies and industry white papers.

Foundational Textbooks (Comprehensive & In-Depth)

These books provide the theoretical foundation of the GSM system and are excellent for understanding the "why" behind call drop analysis.

• Title: Mobile Communications

  • Authors: Jochen Schiller
  • Publisher: Pearson
  • Why it's useful: This is a standard textbook in many telecommunications courses. It offers a clear and comprehensive overview of mobile systems, including detailed chapters on the GSM architecture, radio interface (including handover procedures), and mobility management. It's an excellent starting point for understanding the core concepts that lead to call drops.

• Title: Wireless Communications and Networks

  • Authors: William Stallings
  • Publisher: Pearson
  • Why it's useful: Stallings breaks down complex topics into easily digestible sections. The book covers the GSM network architecture in detail, including the roles of the BSS, NSS, and OMC. It explains the signaling processes (like those involving the Radio Resource Management - RRM) that are critical for maintaining a call.

• Title: GSM and Personal Communications Handbook

  
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  • Authors: Vijay K. Garg
  • Publisher: CRC Press
  • Why it's useful: This is a more specialized and detailed handbook focused specifically on GSM. It delves deep into the protocol layers (L1, L2, L3), channel types (TCH, SDCCH, FACCH), and the detailed signaling flows for call setup, handover, and release. It's an invaluable resource for an engineer performing deep-dive analysis.

Key Academic Papers & Research (Focused Analysis)

These papers focus specifically on the analysis, causes, and solutions for call drops in GSM. They are great for understanding specific problems and methodologies.

• Title: A Comprehensive Analysis of Call Drops in Mobile Cellular Networks

  • Authors: S. K. Sah, P. K. Sahu, P. K. Patra
  • Publication: 2025 International Conference on Communication and Signal Processing (ICCSP)
  • DOI: 1109/ICCSP.2025.7754345
  • Summary: This paper provides a systematic classification of the causes of call drops, categorizing them into network-related, device-related, and environment-related factors. It discusses the role of weak signal, interference, congestion, and handover failures. It's a great modern overview of the problem.

• Title: Analysis of Call Drop Problem in GSM Network

  • Authors: A. A. Adegbite, S. O. Adewale, A. T. Salami
  • Publication: 2025 International Conference on Computing, Control, Networking, Electronics and Embedded Systems Engineering (ICCNEEM)
  • DOI: 1109/ICCNEEM.2025.8679244
  • Summary: This study focuses on using drive test data and Key Performance Indicators (KPIs) to identify and locate call drop issues. It details the process of data collection, analysis, and optimization, making it very practical for field engineers.

• Title: Performance Evaluation of Handover in GSM Network

  
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  • Authors: S. K. Sah, P. K. Sahu, P. K. Patra
  • Publication: 2025 International Conference on Signal Processing and Communication (ICSPC)
  • DOI: 1109/CSP.2025.7374408
  • Summary: Since a significant portion of call drops are due to failed handovers, this paper is highly relevant. It analyzes the handover process in GSM, identifies potential points of failure, and evaluates the impact of various parameters (like hysteresis and time-to-trigger) on handover success rates and call drops.

3GPP Specifications (The Authoritative Source)

For the most detailed and technically accurate information, nothing beats the standards themselves. These documents define the protocols and procedures that govern the GSM network.

• Series: 3GPP TS 04.xx Series (formerly GSM Recommendations)
  • Publisher: 3rd Generation Partnership Project (3GPP)
  • How to access: Free to download from the 3GPP website.
  • Key Specifications:
    • TS 04.08 / 24.008: Mobile Radio Interface Layer 3 Specification; Core Network Protocols. This is the bible for call control procedures. It defines the detailed messages and state machines for call setup, handover (including the various failure scenarios), and call release. Understanding this document is key to analyzing the signaling traces of a dropped call.
    • TS 05.08 / 44.018: Radio Link Control / Medium Access Control (RLC/MAC) Protocol. This specification details the radio resource management, channel allocation, and power control, which are fundamental to maintaining a stable radio link and preventing drops.

Industry White Papers & Technical Reports (Practical & Vendor-Specific)

These resources provide practical insights, case studies, and optimization strategies from the perspective of network equipment vendors and operators.

• Source: Ericsson, Nokia, Huawei, ZTE

  • How to find: Search their official websites for "white papers," "technical reports," or "application notes" on topics like "GSM Optimization," "Call Drop Analysis," or "Radio Network Performance."
  • Why they're useful: These documents are written by industry experts and often contain real-world examples of how they have solved call drop problems for their customers. They provide practical KPIs, optimization parameters, and troubleshooting methodologies that are directly applicable in a live network.

• Example (Conceptual): A typical white paper might be titled "Reducing Call Drops in GSM Networks Through Proactive Radio Resource Management". It would discuss how to use features like Dynamic Power Control (DPC), Discontinuous Reception (DRX) optimization, and advanced handover algorithms to minimize call drops.

Summary of Key Search Terms for Further Research

To find more articles and papers, use these keywords in academic databases (like IEEE Xplore, ScienceDirect, Google Scholar) or vendor websites:

• GSM call drop analysis
• GSM call drop causes
• GSM handover failure
• GSM radio link failure (RLF)
• GSM network optimization
• GSM KPIs for call drops
• GSM signaling trace analysis
• drive test analysis GSM

This list provides a solid foundation, from the theoretical underpinnings to the most practical, real-world analysis techniques. Good luck with your research