"A Chapman & Hall Book."

Includes bibliographical references (pages 361-385) and index.

• Machine generated contents note: ch. 1 Introduction
• Learning Outcomes
• Introduction and Benefits of WLANs
• WLAN Standards
• Motivation for WLAN Performance Study
• Methodology Adopted for WLAN Performance Study
• Contribution and Structure of This Book
• Further Reading
• Books
• Research Papers
• Summary
• Key Terms
• Review Questions
• Mini-Projects
• ch. 2 Wireless Local Area Networks
• Introduction
• WLAN Architecture
• WLAN versus Cellular Networks
• WLAN Performance-Limiting Factors
• IEEE 802.11 Physical Layer
• Automatic Rate Fallback
• Location-Dependent Effects
• Capture Effect
• Hidden and Exposed Station Problems
• IEEE 802.11 Medium Access Control Methods
• IEEE 802.11 DCF
• IEEE 802.11 PCF
• Shortcomings of 802.11
• WLAN Performance Estimation Approaches
• ch. 3 Radio Propagation Characteristics
• Contents note continued: Learning Outcomes
• Radio Propagation Mechanisms
• Radio Propagation Environment: A Review of Literature
• Signal Interference
• Multipath Propagation
• Attenuation
• Signal Quality: RSS, SNR, SIR, and BER
• Received Signal Strength
• Signal-to-Noise Ratio
• Signal-to-Interference Ratio
• Bit Error Rate
• ch. 4 Wireless Medium Access Control Protocols
• Wireless MAC Protocols: A Review of the Literature
• Wireless MAC Protocol Classification
• Contention-Based versus Contention-Free MAC Protocol
• Representative MAC Protocols
• Multiple Access with Collision Avoidance Protocol
• Multiple Access with Collision Avoidance for Wireless Networks Protocol
• Centralized Packet Reservation Multiple Access (C-PRMA) Protocol
• Contents note continued: Floor Acquisition Multiple Access and Group Allocation Multiple Access with Packet Sensing (GAMA-PS) Protocols
• Simple Dynamic Protocol (SDP), Dynamic 802.11 and 802.11+
• Priority Unavoidable Multiple Access (PUMA) Protocol
• TDMA-Based Randomly Addressed Polling (TRAP) Protocol
• Fast Collision Resolution (FCR)
• Interleaved Carrier Sense Multiple Access (ICSMA) Protocol
• Collision-Free MAC, Fair MAC, and 802.11 Distributed Foundation Wireless MAC (DFWMAC)
• Carrier Sense Multiple Access with ID Countdown (CSMA/IC) and Carrier Sense Multiple Access with Collision Prevention (CSMA/CP) Protocols
• Concatenation and Piggybacking Mechanisms
• Collision Detection (CD) MAC Protocol
• New Backoff Algorithm
• MAC Protocol Performance Issues
• Design Issues for Wireless MAC Protocols
• Influence of Radio Propagation on MAC Protocol Design
• Effect of Network Performance on MAC Protocol Design
• Contents note continued: Summary
• ch. 5 Wireless Routing Protocols
• Properties of Routing Protocols
• Design Issues of Routing Protocols
• MANET Routing Approaches
• Optimized Link State Routing
• Dynamic Source Routing
• Ad Hoc On-Demand Distance Vector
• Temporally Ordered Routing Algorithm
• Comparison of Routing Protocols
• Performance of Routing Protocols
• Performance Issues
• A Proposal for Improving MANET Routing Performance
• ch. 6 Cross-Layer Design For WLANs
• Definition of CLD
• Motivation for CLD
• Various Approaches to CLD
• Strengths and Weaknesses of CLD Approaches
• CLD Optimization: A Review of the Literature
• Cross-Layer Design: A Survey and Taxonomy
• TCP Path Recovery Notification (TCP-PRN)
• Contents note continued: Best Video Quality Using CLD
• Rate Adaptation Solution
• Joint Quality and Rate Adaptation
• Opportunistic Cooperative MAC (DC-MAC)
• Weighted Fair Scheduling Adaptive Rate Control Framework
• Rate Optimization for Multicast Communications
• Rate Adaptation and Payload Length
• Cross-Layer Performance Evaluation Framework
• Rate-Proportional 802.11 Fairness
• Rayleigh Channel Predictability
• Joint PHY-MAC Layer Design
• ch. 7 Effect of Radio Propagation Environments on WLAN Performance
• The Environments Used
• Environment A: Duthie Whyte Building
• Environment B: AUT Tower
• Environment C: Suburban House
• Measurement Procedure and Resources Used
• Measurement Results
• Environment A
• Experiment 1: Effect of Tx-Rx Orientation
• Experiment 2: Effect of LOS Condition in the Basement
• Contents note continued: Experiment 3: Effect of Office Wall Partitions
• Experiment 4: Effect of LOS Blockage
• Experiment 5: Effect of Floors
• Experiment 6: Effect of Single-Wall Separation
• Experiment 7: Effect of Microwave Oven Interference
• Environment B
• Scenario 1: Ad Hoc Network
• Scenario 2: Infrastructure Network
• Environment C
• Performance Comparison of Environments A, B, and C
• Measurement Accuracy and Validation
• Review Questions (scenario based)
• ch. 8 Performance of 802.11g in an Obstructed Office Space
• Propagation Study
• Measurement Environment and Procedure
• Measurement Results and Discussion
• Overall Observation and Discussion
• Simulation Study
• Modeling the Network
• Simulation Results
• Simulation Accuracy and Model Verification
• System Implications
• Contents note continued: Further Reading
• Book Chapters
• ch. 9 Improving WLAN Performance by Modifying MAC Protocols
• Previous Work on the Enhancement of 802.11
• Description of the Proposed BUMA Protocol
• Optimization of Buffer Unit Length
• Strengths and Weaknesses
• Protocol Overhead and Throughput Analysis
• Discussion and Interpretation
• Performance Evaluation
• Simulation Environment and Parameters
• Modeling Assumptions
• Simulation Results and Comparison
• Throughput Performance
• Delay Performance
• MDT Fairness
• Packet Drop Ratio
• Simulation Model Verification
• Implementation
• ch. 10 Effect of AP Configuration and Placement on WLAN Performance
• Contents note continued: AP Configuration Methods
• Results and Discussion for AP Configuration
• Implications for AP Configuration
• Experiment Details for AP Placement
• Results and Discussion for AP Placement
• Semi-LOS Conditions
• Non-LOS Conditions
• Implications for AP Placement
• ch. 11 Effect of Routing Protocols on WLAN Performance
• Performance Study of MANET Routing Protocols
• Network Scenarios
• Simulation Environment and Parameter Settings
• Experiment's Results
• Impact of Network Size (Small, Medium, and Large)
• Scenario 1: Small-Sized Network (N = 10, NS = 5 m/s, PL = 1,000 bytes)
• Scenario 2: Medium-Sized Network (N = 50, NS = 5 m/s, PL = 1,000 bytes)
• Contents note continued: Scenario 3: Large-Sized Network (N = 100, NS = 5 m/s, PL = 1,000 bytes)
• Impact of Increasing Node Speed
• Scenario 4: Varying Node Speed in a Small-Sized Network (N = 10, NS = 20 and 30 m/s, PL = 1,000 bytes)
• Scenario 5: Varying Node Speed in a Medium-Sized Network (N = 50, NS = 20 and 30 m/s, PL = 1,000 bytes)
• Scenario 6: Varying Node Speed in a Large-Sized Network (N = 100, NS = 20 and 30 m/s, PL = 1,000 bytes)
• Impact of Increasing Traffic Load
• Scenario 7: Varying Traffic Load in a Small-Sized Network (N = 10, NS = 30 m/s, PL = 5,000 and 50,000 bytes)
• Scenario 8: Varying Traffic Load in a Medium-Sized Network (N = 50, NS = 30 m/s, PL = 5,000 and 50,000 bytes)
• Scenario 9: Varying Traffic Load in a Large-Sized Network (N = 100, NS = 30 m/s, PL = 5,000 and 50,000 bytes)
• Comparative Analysis
• Overall Observation and Interpretations
• Effect of Network Size
• Effect of Node Mobility
• Effect of Packet Length (Traffic Load)
• Contents note continued: Validation of Simulation Results
• ch. 12 Improving WLAN Performance Using CLD Optimization
• Effect of Channel BER on WLAN Performance
• Relationship between BER and FER
• Implementation of BER in Ns-2.31
• Performance Results
• Impact of BER on Network Throughput
• Impact of BER on Packet Delay
• Impact of BER on Network Fairness
• Impact of BER on Packet Drop Ratio
• Proposed PHY-MAC Layer Design Framework
• Cross-Layer Design Algorithms
• Benefits and Practical Implications of the Proposed CLD Method
• Overall Observations and Interpretations
• Contents note continued: ch. 13 Effect of Traffic Distribution on WLAN Performance
• Traffic Generators and Arrival Processes
• Simulation Results and Comparative Analysis
• Effect of Packet Arrival Distributions on System Performance
• Impact of Traffic Arrival Distributions on Network Throughput
• Impact of Traffic Arrival Distributions on Network Mean Packet Delay
• Impact of Traffic Arrival Distributions on Network Fairness
• Impact of Traffic Arrival Distributions on Packet Drop Ratios
• Summary of Findings
• ch. 14 Combined Effect of Signal Strength and Traffic Type on WLAN Performance
• Experiment's Details
• Methodology and Scenarios
• Experiment's Design
• Empirical Results
• Contents note continued: Scenario 1: Ad Hoc Network
• Scenario 2: Infrastructure Network without Contention
• Scenario 3: Infrastructure Network with Contention
• Summary of Measurement Results
• Performance of VoIP Traffic
• Performance of Video-Conferencing (Video) Traffic
• Effect of RSS on Network Performance
• Overall Observation and Interpretation
• Validation of Simulation Results
• ch. 15 Implications for System Planning and Deployment
• An Evolutionary Path for Adopting WLAN Technology
• Deployment of WLANs
• Single-Floor Office Scenario
• Deployment of Ad Hoc Networks
• Deployment of Infrastructure Networks
• Multifloor Office Scenario
• Computer Laboratory
• Residential House Environment
• Contents note continued: Summary of Findings
• Deploying High-Performance WLANs
• Combined Effect of RSS and Traffic Type
• Recommendation for Future Development
• WLAN Performance Evaluation in the Presence of Hidden and Exposed Stations
• Performance Study of 802.11a Networks
• Rate Adaptation QoS-Aware MAC Protocol for Multimedia WLANs
• Cross-Layer Design with Adaptive Payload and Rate Adaptation for Multimedia WLANs
• Development of an Adapting Routing Protocol for WLANs
• Development of Antenna-Aware Propagation Models
• ch. 16 Recent Developments In WLANs
• IEEE 802.11n: High-Performance Wi-Fi
• MIMO
• PHY Enhancement
• MAC Enhancement
• IEEE 802.11ac: Next-Generation Wi-Fi
• IEEE 802.11ad: Very High Throughput Wi-Fi
• IEEE 802.11u: Emergency QoS
• Contents note continued: IEEE 802.11p: Vehicle-to-Vehicle Communication
• IEEE 802.11s: Wireless Mesh Networking
• IEEE 802.22 Cognitive Radio Network
• Green Networking
• 802.11i: Secure Wireless Network
• Mini-Projects.
• Introduction
• Wireless Local Area Networks
• Radio Propagation Characteristics
• Wireless Medium Access Control Protocols
• Wireless Routing Protocols
• Cross-Layer Design for WLANs
• Effect of Radio Propagation Environments on WLAN Performance
• Performance of 802.11g in an Obstructed Office Space
• Improving WLAN Performance by Modifying MAC Protocols
• Effect of AP Configuration and Placement on WLAN Performance
• Effect of Routing Protocols on WLAN Performance
• Improving WLAN Performance Using CLD Optimization
• Effect of Traffic Distribution on WLAN Performance
• Combined Effect of Signal Strength and Traffic Type on WLAN Performance
• Implications for System Planning and Deployment
• Recent Developments in WLANs.

While there are countless books on wireless networks, few actually quantify the key performance-limiting factors of wireless local area networks (WLANs) and describe various methods for improving WLAN performance. Fulfilling these needs, Improving the Performance of Wireless LANs: A Practical Guide provides both theoretical background and empirical results for the optimum planning and deployment of high performance WLAN systems in different residential and commercial buildings. Useful to students, faculties, researchers, engineers, and network developers.