Wireless Networking

Course Title: Wireless Networking

Course No: BIT357

Nature of the Course: Theory + Lab

Semester: 6

Full Marks: 60 + 20 + 20

Pass Marks: 24 + 8 + 8

Credit Hours: 3

Course Description

The course addresses the fundamentals of wireless communications and provides an overview of existing and emerging wireless communications networks. It covers radio propagation and fading models, fundamentals of cellular communications, multiple access technologies, and various wireless networks, including past and future generation networks. Simulation of wireless systems under different channel environments will be integral part of this course.

Course Objectives

To characterize fading multi-path radio channels, describe different types of diversity for mobile radio channels, explain propagation models for mobile and portable wireless communication, analyze simple wireless networks in terms of coverage and capacity, discuss multiple access techniques and standards, describe mobility management strategies and traffic calculation, describe concept of mobile IP, protocols and routing in ad-hoc network.

Course Contents

1. Overview of wireless communications and systems

2 hrs

1.1. Introduction to Wireless Communications

1.2. Challenges in Wireless Communication Networks

1.3. Cellular Systems from 1G to 3G

1.4. Wireless 4G and 5G Systems

2. Wireless Channel Characterization

7 hrs

2.1. Multipath Propagation Environment

Small Scale Fading

Fading Effects due to Multipath Time Delay Spread

Fading Effects due to Doppler Spread

2.2. Channel Models

Rayleigh Fading Distribution

Ricean Fading Distribution

2.3. Large Scale Path-Loss and Shadowing

Free-Space Path Loss Model

Propagation Over Reflecting Surface (Smoothing Plane)

Long Distance Path loss with Shadowing: Okumura-Hara Path Loss Model

3. Band Pass Transmission Technique for Mobile Radio

9 hrs

3.1. An overview of Digital Communication

Pulse Shaping Technique, Nyquist Pulse Shaping

Raised Cosine Roll-off Filter

3.2. Modulation Techniques for Mobile Radio

Analog and Digital Modulation – An overview

Criteria of Choosing Modulation Schemes

Geometric Representation of Modulated signal

Power Spectral Density, Probability of Error

3.3. Digital Modulation Techniques

Digital Linear Modulation (BPSK, DPSK, QPSK)

3.4. Minimum Shift Keying (MSK), Gaussian Minimum Shift Keying (GMSK)

3.5. M-array (MPSK, MFSK, QAM and OFDM) Modulation and Demodulation

4. Equalization, Diversity and Channel Coding

4 hrs

4.1. Basics of Equalization

Equalization in Communications Receivers

Linear Equalizers, Non-Linear Equalization

Decision Feedback and Maximum Likelihood Sequence Estimation Equalizations

4.2. Adaptive Equalization Algorithms

Zero Forcing, Least Mean Square, Recursive Least Squares Algorithms

Fractionally Spaced Equalizers

4.3. Diversity Methods

Advantages of Diversity, Basic Definitions, Space Diversity

Reception Methods (Selection, Feedback, Maximum Ratio and Equal Gain Diversity)

Polarization, Frequency and Time Diversity

RAKE Receivers and Interleaving

5. Fundamental of Cellular Network

6 hrs

5.1. Transmission Control Protocol (TCP)

5.2. User Datagram Protocol (UDP)

5.3. Ports, IP Address Network Classes in JDK

5.4. Socket Programming using TCP

5.5. Socket Programming using UDP

5.6. Working with URL's, working with URL Connection Class

6. Multiple Access in Wireless Network

6 hrs

6.1. Frequency Division Multiple Access (FDMA)

FDMA Principle and Application

6.2. Time Division Multiple Access (TDMA)

TDMA Principles and Applications

6.3. Spread Spectrum Multiple Access

Frequency Hopped Multiple Access

Code Division Multiple Access

Hybrid spread spectrum multiple access techniques

6.4. Space Division Multiple Access

6.5. Standards for Wireless Local Area Networks

7. Mobility Management in Wireless Network

5 hrs

7.1. Introduction to Mobility Management

Call Admission Control (CAC)

Handoff Management, Handoff Strategies, Handoff Types

7.2. Location Management

Location Management for Cellular Network

Location Management for PCS Network

7.3. Traffic Calculation

8. Wireless Internetworking

6 hrs

8.1. Introduction to Internetworking for Wireless Networks

8.2. Concept of mobile IP

Architecture and Operation

Tunneling in mobile IP

8.3. Mobility in IPv6

8.4. Transmission Control Protocol (TCP), Wireless Application Protocol (WAP)

8.5. Wireless Markup Language (WML)

8.6. Mobile AD HOC Network (MANET)

ADHOC Routing Protocols

Laboratory Works

Students should write programs and prepare lab sheet for most of the units in the syllabus. Majorly, students should practice design and implementation of wireless network. Students are advised to implement the modulator de-modulator, frequency planning, channel assignment as well as routing algorithms used in wireless network. Students are advised to use simulators. Students are advised to visit the mobile service operators, network service providers, internet service providers and prepare the report including architecture, service, and functioning of the wireless network.

1.Wireless Network Design and Implementation Lab

Text Books

1.Jon W. Mark and Weihua Zhuang, Wireless Communication and Networking, Prentice Hall
2.K. Feher, Wireless Digital Communications, Prentice Hall
3.T. Rappaport, Wireless Communications, Prentice Hall
4.J. Schiller, Mobile Communications, Pearson

Notes:

This syllabus follows the official BIT curriculum of Tribhuvan University. In case of any doubt or revision, the university’s published syllabus shall be considered authoritative.

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