Technical Challenges for Broadband Wireless

Meeting these stringent service requirements while being saddled with a number of constraints
imposed by wireless make the system design of broadband wireless a formidable technical
challenge. Some of the key technical design challenges are
• Developing reliable transmission and reception schemes to push broadband data through a
hostile wireless channel
• Achieving high spectral efficiency and coverage in order to deliver broadband services to a
large number of users, using limited available spectrum
• Supporting and efficiently multiplexing services with a variety of QoS (throughput, delay,
etc.) requirements
• Supporting mobility through seamless handover and roaming
• Achieving low power consumption to support handheld battery-operated devices
• Providing robust security
• Adapting IP-based protocols and architecture for the wireless environment to achieve
lower cost and convergence with wired networks