Wireless Access Networks: Recent Developments, Issues and Trends

Broadband access is quickly becoming ubiquitous. Among the technologies for access, wireless is becoming the preferred technology for reasons of mobility, cost, and convenience. In this talk we begin with the recent trends in the wireless access market, summarize the key technical developments that are leading to increasing reach and speeds. WiMAX is almost here but the competing technologies, such as HSPA, EV-DO, LTE, IEEE 802.20, IEEE 802.22 are also trying to catch up fast and the next generation WiMAX is already being designed. These and other developments will be presented. This talk covers the following topics:

• Telecom Revenue
• Broadband Market by Regions
• Personal Broadband: Fixed vs. Mobile
• Voice and Data Revenues (Korea)
• Prior Attempts: LMDS & MMDS
• Technical Challenges
• WiMAX
• Six WiMAX Foundation Technologies
• CDMA
• Multiple Access Methods
• 1. OFDM
• OFDMA
• Scalable OFDMA (SOFDMA)
• 2. Beamforming
• 3. MIMO
• Cooperative MIMO
• 4. Space Time Block Codes (STBC)
• 5. Turbo Codes
• 6. Time Division Duplexing (TDD)
• Status of WiMAX
• Sample WiMAX Subscriber Stations
• Other Broadband Access Technologies
• Cellular Telephony Generations
• IMT-Advanced
• IEEE 802.16m
• 700 MHz

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