Evolution of Mobility in Future Wireless Networks
DOI:
https://doi.org/10.13052/jcsm2245-1439.117Keywords:
3GPP, LTE, data offload, WiFi, WLAN, femto, pico, small cells, smart phones, local breakout, multi access connectivity, IP flow mobilityAbstract
With an ever increasing appetite for data over wireless networks, one is forced to think where the additional capacity in the wireless networks come from to carry the traffic? Some would argue that additional spectrum needs to be made available or a substantial increase in spectral efficiency has to come by. However, notwithstanding the above, an additional area that has important implications is to evolve seamless and non-seamless session mobility across disparate access technologies such as WiFi to offload some of the traffic to these alternate networks. Similarly, selective handover of specific flows across smaller cells such as Femto and Pico cells of the same access technology will have an impact on the overall capacity of the network. This not only will improve the capacity of these networks but may also enhance the quality of experience for users.
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References
3GPP TS23.261: IP flow mobility and seamlessWireless Local Area Network data offload.
3GPP TS23.402: Architecture Enhancements for non-3GPP Accesses.
3GPP TR23.829: Local IP Access and Selected IP Traffic Offload (LIPA-SIPTO).
IEEE Std 802.21-2008, IEEE Standard for Local and Metropolitan Area Networks Part 21: Media Independent Handover Services, IEEE, January 2009.