4g Wireless Networks: Data and Bandwidth Improvements
4G Wireless Networks: Data and Bandwidth Improvements
How much faster is 4G compared against 3G? The speed of 3G networks depends on how they are implemented. By 2010 Verizon (a CDMA network) had reached the limits of its 3G network speed in the United States. 4G networks allowed Verizon the ability to offer transmission speeds up to four times faster than its current 3G network. AT&T’s 3G network, however, is based on GSM. The GSM design left AT&T room to upgrade its current 3G speeds. “…it is anticipated that when AT&T upgrade[s] their 3G networks, their speeds will become comparable to 4G from…Verizon. (Diffen, 2011)” For AT&T, the first 3G specification was WCDMA, and was based on the CDMA standard. For Verizon, the first 3G specification was 1X, followed by EV-DO. The same audio and video formats are used in 3GPP2 as in 3GPP with the addition of QCELP speech.
Over time, AT&T and Verizon are expected to merge their (GSM and CDMA, respectively) networks into the Long Term Evolution (LTE) standard supported by both 3GPP and 3GPP2. | 3G | 4G | Data Throughput: | Up to 3.1mbps | 3 to 5 Mbps; estimated range of 100 to 300 Mbps. | Peak Upload Rate: | 50 Mbit/s | 500 Mbit/s | Peak Download Rate: | 100 Mbit/s | 1 Gbit/s | Switching Technique: | packet switching | packet switching, message switching | Network Architecture: | Wide Area Cell Based | Integration of wireless LAN and Wide area. | Services And Applications: | CDMA 2000, UMTS, EDGE etc. | Wimax2 and LTE-Advance | Forward error correction (FEC): | 3G uses Turbo codes for error correction. | Concatenated codes are used for error corrections in 4G. | Frequency/Band: | 1.8 – 2.5GHz | 2 – 8GHz |
(The Associated Press, 2010) (Diffen, 2011) As shown in the table above, the services and applications used by 3G are CDMA 2000, UMTS, EDGE, and others. UMTS utilizes the FOMA, WCDMA and HSPA air interface technologies, and UMTS networks can co-exist with earlier 2.5G
How much faster is 4G compared against 3G? The speed of 3G networks depends on how they are implemented. By 2010 Verizon (a CDMA network) had reached the limits of its 3G network speed in the United States. 4G networks allowed Verizon the ability to offer transmission speeds up to four times faster than its current 3G network. AT&T’s 3G network, however, is based on GSM. The GSM design left AT&T room to upgrade its current 3G speeds. “…it is anticipated that when AT&T upgrade[s] their 3G networks, their speeds will become comparable to 4G from…Verizon. (Diffen, 2011)” For AT&T, the first 3G specification was WCDMA, and was based on the CDMA standard. For Verizon, the first 3G specification was 1X, followed by EV-DO. The same audio and video formats are used in 3GPP2 as in 3GPP with the addition of QCELP speech.
Over time, AT&T and Verizon are expected to merge their (GSM and CDMA, respectively) networks into the Long Term Evolution (LTE) standard supported by both 3GPP and 3GPP2. | 3G | 4G | Data Throughput: | Up to 3.1mbps | 3 to 5 Mbps; estimated range of 100 to 300 Mbps. | Peak Upload Rate: | 50 Mbit/s | 500 Mbit/s | Peak Download Rate: | 100 Mbit/s | 1 Gbit/s | Switching Technique: | packet switching | packet switching, message switching | Network Architecture: | Wide Area Cell Based | Integration of wireless LAN and Wide area. | Services And Applications: | CDMA 2000, UMTS, EDGE etc. | Wimax2 and LTE-Advance | Forward error correction (FEC): | 3G uses Turbo codes for error correction. | Concatenated codes are used for error corrections in 4G. | Frequency/Band: | 1.8 – 2.5GHz | 2 – 8GHz |
(The Associated Press, 2010) (Diffen, 2011) As shown in the table above, the services and applications used by 3G are CDMA 2000, UMTS, EDGE, and others. UMTS utilizes the FOMA, WCDMA and HSPA air interface technologies, and UMTS networks can co-exist with earlier 2.5G
Cited: Computer Desktop Encyclopedia. (2011). Computer Desktop Encyclopedia - Terms. Retrieved 07 27, 2012, from www.computerlanguage.com: http://www.computerlanguage.com/ttod.html Costello, S Diffen. (2011, 01). 3G vs 4G. Retrieved 07 28, 2012, from Diffen.com: http://www.diffen.com/difference/3G_vs_4G E Goldman, D. (2012, 02 21). Sorry, America: Your Wireless Airwaves are Full. Retrieved 07 29, 2012, from CNN Money: http://money.cnn.com/2012/02/21/technology/spectrum_crunch/index.htm?iid=EL Moore, B PC MAgazine. (1996-2012). Definition of: IMT-2000. Retrieved 07 28, 2012, from www.pcmag.com: http://www.pcmag.com/encyclopedia_term/0,1237,t=IMT-2000&i=44845,00.asp PC Magazine PC Magazine. (1996-2012). Definition of: QCELP. Retrieved 07 29, 2012, from www.pcmag.com: http://www.pcmag.com/encyclopedia_term/0%2C1237%2Ct%3DQCELP&i%3D60360%2C00.asp Quantum WiMAX The Associated Press. (2010, 06 01). 4G wireless: It 's fast, but outstripped by hype. Retrieved 07 29, 2012, from www.usatoday.com: http://www.usatoday.com/tech/wireless/data/2010-06-01-4G-wireless_N.htm Turban, E., & Volonino, L Wortham, J. (2009, 09 02). Customers Angered as iPhones Overload AT&T. Retrieved 07 27, 2012, from NY Times: http://www.nytimes.com/2009/09/03/technology/companies/03att.html?_r=3&hp -------------------------------------------- [ 3 ]. (QUALCOMM Code Excited Linear Prediction) A codec from QUALCOMM developed to improve the speech quality in IS-95A CDMA networks (PC Magazine, 1996-2012).