Multi‐homing for a Green Downlink
Muhammad Ismail, Muhammad Zeeshan Shakir, Khalid A. Qaraqe, Erchin Serpedin · 2016
In a heterogeneous wireless medium, downlink multi-homing radio resource allocation can save power for network operators. In this context, two application scenarios can be distinguished. In the first scenario, the MT aggregates the offered radio resources from different networks to support a single (data hungry) application, while in the second scenario, the MT runs different applications using the radio resources assigned to different radio interfaces. This chapter discusses the challenging issues associated with each application scenario. It presents two downlink radio resource allocation mechanisms that address research issues for the two application scenarios. The downlink green communication problem is formulated as an asymmetric Nash bargain game to jointly allocate radio resources (bandwidth and power) from different networks to a set of MTs with multi-homing capabilities. The chapter also presents a minimum power consumption radio resource allocation algorithm for LTE/WiFi networks that takes into account the mutual IDC interference between LTE and WiFi.