Heterogeneous wireless network

A Heterogeneous wireless network (HWN) is a special case of a Heterogeneous network (HetNet). Whereas a HetNet may consist of a network of computers or devices with different capabilities in terms of operating systems, hardware, protocols, etc., a HWN is a wireless network which consists of devices using different underlying radio access technology (RAT).[1]

There are several problems still to be solved in heterogeneous wireless networks such as:

There are several benefits to a HWN as opposed to a traditional homogeneous wireless network including increased reliability, improved spectrum efficiency, and increased coverage. Reliability is improved because when one particular RAT within the HWN fails, it may still be possible to maintain a connection by falling back to another RAT. Spectrum efficiency is improved by making use of RATs which may have few users through the use of load balancing across RATs and coverage may be improved because different RATs may fill holes in coverage that any one of the single networks alone would not be able to fill.

References

  1. ↑ Melhem El Helou; Samer Lahoud; Marc Ibrahim; Kinda Khawam (April 2013). "A Hybrid Approach for Radio Access Technology Selection in Heterogeneous Wireless Networks". 19th European Wireless Conference -Proceedings. Archived from the original (PDF) on 7 October 2003. Retrieved 2013-10-07.
  2. ↑ Pan Li; Yuguang Fang (March 2010). "The Capacity of Heterogeneous Wireless Networks". INFOCOM -Proceedings. Archived from the original (PDF) on 7 October 2003. Retrieved 2013-10-07.
  3. ↑ O.-E. Barbu; O. Fratu (March 2011). "An enabler of interoperability in heterogeneous wireless networks". Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology -Proceedings. Archived from the original (PDF) on 7 October 2003. Retrieved 2013-10-07.
  4. ↑ Shih Jung Wu (August 2010). "An intelligent handover decision mechanism for heterogeneous wireless networks". Int. Conf. on Networked Computing and Advanced Information Management  -Proceedings. Archived from the original (PDF) on 7 October 2003. Retrieved 2013-10-07.
  5. ↑ J.B. Ernst; N. Nasser; J. Rodrigues (June 2012). "Co-channel interference modelling between RATs in heterogeneous wireless networks". IEEE Int. Conf. on Communications -Proceedings. Archived from the original (PDF) on 7 October 2003. Retrieved 2013-10-07.


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