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Padhai By Astra Cloud

BIT357 Wireless Networking

Wireless Networking notes

8 chapter notes, in syllabus order. Each starts with the key points.

Unit 1 · 2 hrs

Wireless Systems: Definitions, Types, Applications & ChallengesUnit 1 of Wireless Networking covers the foundational concepts of wireless communication systems, including definitions, classifications, key components, and real-world applications. This note explains how wireless systems differ from wired networks, their core technologies, and the challenges they face in deployment.15 min read

Unit 2 · 7 hrs

Wireless Channel: Path Loss, Fading, Multipath, Noise & CapacityUnit 2 of Wireless Networking explores how radio signals behave in the real world—how distance, obstacles, and interference degrade signal strength, how multipath fading distorts data, and how noise limits performance. You’ll learn to model path loss, calculate signal-to-noise ratios, and understand how channel capacit10 min read

Unit 3 · 9 hrs

Band-Pass Techniques: Modulation, Filtering & Spectrum Efficiency in Mobile RadioUnit 3 of Wireless Networking explores how mobile radios transmit signals in high-frequency bands using band-pass techniques, including modulation (AM/FM/SSB), filtering (BPF, LPF), and spectrum efficiency methods like single-sideband (SSB) and vestigial sideband (VSB). It covers mathematical representations, real-worl11 min read

Unit 4 · 4 hrs

Equalization, Diversity & Channel Coding in WirelessUnit 4 of Wireless Networking explores how wireless signals combat fading, interference, and noise through equalization (correcting signal distortion), diversity techniques (redundant paths for reliability), and channel coding (error detection/correction). Learn their mechanisms, trade-offs, and real-world applications16 min read

Unit 5 · 6 hrs

Cellular Networks: Cells, Handoffs, Frequency Reuse & 1G-5G EvolutionUnit 5 of Wireless Networking explores the core principles of cellular networks—how they partition coverage into cells, manage handoffs, reuse frequencies efficiently, and evolve from 1G to 5G—with real-world examples from Ncell, NTC, and global operators.10 min read

Unit 6 · 6 hrs

Multiple Access Techniques in Wireless Networks: TDMA, FDMA, CDMA, OFDMA, and Random AccessUnit 6 of Wireless Networking explores how multiple devices share a wireless medium efficiently, covering Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Code Division Multiple Access (CDMA), Orthogonal Frequency Division Multiple Access (OFDMA), and random access methods (ALOHA, CSMA).15 min read

Unit 7 · 5 hrs

Mobility Management: Handoffs, Location Tracking & Roaming in Wireless NetworksUnit 7 of Wireless Networking explores how wireless networks maintain seamless connectivity as users move between cells, covering handoff techniques, location management, roaming protocols, and their real-world applications in cellular networks, Wi-Fi, and IoT systems.11 min read

Unit 8 · 6 hrs

Wireless Internetworking: Protocols, Standards & IntegrationUnit 8 of Wireless Networking explores how wireless systems interconnect with wired networks, covering IEEE 802.11 standards, interoperability protocols, roaming techniques, and security frameworks like WPA3, with real-world applications in eSewa’s payment gateways and Pathao’s ride-hailing routing.14 min read