Contents:

Definitions & Methodology SEEoIP ? 1 SEEoIP 1.1 VoIP 1.2 Metro-Scale Wi-Fi 1.3 Wi-Fi Cameras Technology Review 2 Technology Review 2.1 Personal Area 2.1.1 Infrared 2.1.2 Bluetooth 2.1.3 Ultra-Wideband (UWB) 2.2 Local Area 2.2.1 The Different Flavors of Wi-Fi 2.3 Wide Area 2.3.1 The Cellular Networks 1G 2G 2.5 3G 3.5G 2.3.2 GSM GPRS EDGE UMTS HSDPA HSUPA 2.3.3 CDMA CDMA2000 1xRTT CDMA 1x EV-DO CDMA 1x EV-DO Rev A CDMA 1x EV-DO Rev B 2.3.4 Alternative WWANs WiMAX UMTS TDD FLASH OFDM Conclusions & Outlook 3 Conclusions & Outlook 3.1 Personal Area 3.2 Wide Area 3.3 Local Area 3.4 Outlook TABLE OF FIGURES Fig. 1 – comparative speeds for transferring a three-megapixel image over the WLAN and WWAN networks likely to be in place within two years . Fig. 2 – comparative speeds for transferring a one-gigabyte memory card over the WLAN and WWAN Table 1 – USB Table 2 – Infrared Table 3 – Bluetooth Table 4 – UWB Fig. 3 – comparative speeds for transferring a three-megapixel image over WPAN Fig. 4 – comparative speeds for transferring a one-gigabyte memory card over WPAN Table 5 – Ethernet Table 6 – 802.11 Working Groups Table 7 – Wi-Fi Fig. 5 – comparative speeds for transferring a three-megapixel image over WLAN Fig. 6 – comparative speeds for transferring a one-gigabyte memory card over WLAN Table 8 – GSM Table 9 – GPRS Table 10 – EDGE Table 11 – UMTS Table 12 – HSDPA Table 13 – HSUPA Fig. 7 – comparative speeds for transferring a three-megapixel image over GSM networks Fig. 8 – comparative speeds for transferring a one-gigabyte memory card over GSM networks Table 14 – CDMA 1x Table 15 – CDMA 1x EV-DO Table 16 – CDMA 1x EV-DO Rev A Table 17 – CDMA 1x EV-DO Rev B Fig. 9 – comparative speeds for transferring a three-megapixel image over CDMA networks Fig. 10 – comparative speeds for transferring a one-gigabyte memory card over CDMA networks Table 18 – WiMAX Table 19 – UMTS TDD Table 20 – FLASH OFDM Fig. 11 – comparative speeds for transferring a three-megapixel image over WWAN networks Fig. 12 – comparative speeds for transferring a one-gigabyte memory card over WWAN networks

Methodology

For analog signals, bandwidth refers to the amount of space on the radio spectrum that the signal occupies — the width of the band. Narrowband refers to a signal that occupies only a small band of spectrum, while broadband generally refers to data transmission where multiple pieces of data are sent simultaneously to increase the effective rate of transmission, occupying a broader band of spectrum. In the context of this discussion, however, bandwidth refers to the amount of data that can be transferred through a digital connection in a given time period — the connection's "bit rate." Narrowband refers to "thin pipes" that cannot carry much data. Broadband refers to "fat pipes" that can. In these cases, bandwidth is usually measured in bits or bytes per second. The future of bandwidth — especially for mobile imaging and other multimedia uses — is to get ever broader and therefore faster.