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Managed Access (corrections)
Managed access is managing cellular network access from contraband phones within a corrections facility. Managed access differs from cellular jamming technologies, which are outlawed in the United States. A managed access system functions like a femtocell or low-power cell tower which passes calls to cellular carriers; however, only communications from approved devices and emergency calling are allowed. The managed access signal appears as an extension of nearby commercial cellular signals; once a phone connects to the network its identifying information is compared with approved devices and communications are accepted or denied. Managed access networks work with commercial cellular signals including 2G, 3G, 4G/LTE, and WiMAX Worldwide Interoperability for Microwave Access (WiMAX) is a family of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide physical layer (PHY) and media access control (MAC) options. The WiMAX .... In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Jamming
Radio jamming is the deliberate jamming, blocking or interference with wireless communications.https://apps.fcc.gov/edocs_public/attachmatch/DA-12-347A1.pdf Enforcement Advisory No. 2012-02 FCC Enforcement Advisory Cell Jammers, GPS Jammers, and Other Jamming Devices Consumer Alert: Using or Importing Jammers is Illegal In some cases, jammers work by the transmission of radio signals that disrupt communications by decreasing the signal-to-noise ratio. The concept can be used in wireless data networks to disrupt information flow. It is a common form of censorship in totalitarian countries, in order to prevent foreign radio stations in border areas from reaching the country. Jamming is usually distinguished from interference that can occur due to device malfunctions or other accidental circumstances. Devices that simply cause interference are regulated differently. Unintentional "jamming" occurs when an operator transmits on a busy frequency without first checking whether it is in u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femtocell
In telecommunications, a femtocell is a small, low-power cellular base station, typically designed for use in a home or small business. A broader term which is more widespread in the industry is ''small cell'', with ''femtocell'' as a subset. It connects to the service provider's network via broadband (such as DSL or cable); current designs typically support four to eight simultaneously active mobile phones in a residential setting depending on version number and femtocell hardware, and eight to sixteen mobile phones in enterprise settings. A femtocell allows service providers to extend service coverage indoors or at the cell edge, especially where access would otherwise be limited or unavailable. Although much attention is focused on WCDMA, the concept is applicable to all standards, including GSM, CDMA2000, TD-SCDMA, WiMAX and LTE solutions. The use of femtocells allows network coverage in places where the signal to the main network cells might be too weak. Furthermore, femtoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cell Site
A cell site, cell tower, or cellular base station is a cellular-enabled mobile device site where antennas and electronic communications equipment are placed (typically on a radio mast, tower, or other raised structure) to create a cell, or adjacent cells, in a cellular network. The raised structure typically supports antenna and one or more sets of transmitter/receivers transceivers, digital signal processors, control electronics, a GPS receiver for timing (for CDMA2000/IS-95 or GSM systems), primary and backup electrical power sources, and sheltering. Multiple cellular providers often save money by mounting their antennas on a common shared mast; since separate systems use different frequencies, antennas can be located close together without interfering with each other. Some provider companies operate multiple cellular networks and similarly use colocated base stations for two or more cellular networks, ( CDMA2000 or GSM, for example). Some cities require that cell sites b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LTE (telecommunication)
In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements. LTE is the upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. Because LTE frequencies and bands differ from country to country, only multi-band phones can use LTE in all countries where it is supported. The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9. LTE is also called 3.95G and has been marketed as "4G LTE" and "Advanced 4G"; but it does not meet the technical criteria of a 4G wireless service, as specified in the 3GPP Release 8 and 9 document series for LTE Advanced. The requirements were set forth by the ITU-R organisation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WiMAX
Worldwide Interoperability for Microwave Access (WiMAX) is a family of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide physical layer (PHY) and media access control (MAC) options. The WiMAX Forum was formed in June 2001 to promote conformity and interoperability, including the definition of system profiles for commercial vendors. The forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL". IEEE 802.16m or WirelessMAN-Advanced was a candidate for 4G, in competition with the LTE Advanced standard. WiMAX was initially designed to provide 30 to 40 megabit-per-second data rates, with the 2011 update providing up to 1 Gbit/s for fixed stations. WiMAX release 2.1, popularly branded as WiMAX 2+, is a backwards-compatible transition from previous WiMAX generations. It is compatible and interoperable with TD-LTE. Terminology WiM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mississippi Department Of Corrections
The Mississippi Department of Corrections (MDOC) is a state agency of Mississippi that operates prisons. It has its headquarters in Jackson. Burl Cain is the commissioner. History In 1843 a penitentiary in four city squares in central Jackson was developed as Mississippi's first state prison."Article 14 -- No Title":Convicts Who Are In Demand After Serving Terms"Direct article link ''The New York Times''. Retrieved on August 14, 2010.Cabana, Donald A.The History of Capital Punishment in Mississippi: An Overview." ''Mississippi History Now''. Mississippi Historical Society. Retrieved on August 16, 2010. The prison in Jackson was destroyed during the Civil War, and the state did not replace it for decades. Instead, the state conducted convict leasing, leasing prisoners to third parties for their labor. The lessees held custody of the inmates and provided their room and board, often substandard. The state made substantial amounts of money from these arrangements, which created an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mississippi State Penitentiary
Mississippi State Penitentiary (MSP), also known as Parchman Farm, is a maximum-security prison farm located in unincorporated Sunflower County, Mississippi, in the Mississippi Delta region. Occupying about of land,"State Prisons" . . Retrieved January 14, 2011."MDOC Quick Reference" Mississippi Department of Corrections. Retrieved May 21, 2010. Parchman is the only maximum security prison for men in the state of |
Federal Communications Commission
The Federal Communications Commission (FCC) is an independent agency of the United States federal government that regulates communications by radio, television, wire, satellite, and cable across the United States. The FCC maintains jurisdiction over the areas of broadband access, fair competition, radio frequency use, media responsibility, public safety, and homeland security. The FCC was formed by the Communications Act of 1934 to replace the radio regulation functions of the Federal Radio Commission. The FCC took over wire communication regulation from the Interstate Commerce Commission. The FCC's mandated jurisdiction covers the 50 states, the District of Columbia, and the territories of the United States. The FCC also provides varied degrees of cooperation, oversight, and leadership for similar communications bodies in other countries of North America. The FCC is funded entirely by regulatory fees. It has an estimated fiscal-2022 budget of US $388 million. It has 1,482 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ajit Pai
Ajit Varadaraj Pai (; born January 10, 1973) is an American lawyer who served as chairman of the U.S. Federal Communications Commission (FCC) from 2017 to 2021. He has been a partner at the private-equity firm Searchlight Capital since April 2021. The son of Indian immigrants to the United States, Pai grew up in Parsons, Kansas. He is a graduate of both Harvard University and the University of Chicago Law School. He worked as a lawyer in various offices of the U.S. Department of Justice and the U.S. Senate Judiciary Committee, with a two-year stint as an in-house lawyer for Verizon Communications. He joined the FCC as a lawyer in its Office of General Counsel in 2007. He was nominated to be a commissioner in 2011 by President Barack Obama, who followed tradition in preserving balance on the commission by accepting the recommendation of Senate Majority Leader Mitch McConnell. He was confirmed unanimously by the U.S. Senate on May 7, 2012, and was sworn in on May 14, 2012, for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
