This SpringerBrief offers two concrete design examples for traffic
offloading. The first is an optimal resource allocation for small-cell
based traffic offloading that aims at minimizing mobile users' data
cost. The second is an optimal resource allocation for device-to-device
assisted traffic offloading that also minimizes the total energy
consumption and cellular link usage (while providing an overview of the
challenging issues). Both examples illustrate the importance of proper
resource allocation to the success of traffic offloading, show the
consequent performance advantages of executing optimal resource
allocation, and present the methodologies to achieve the corresponding
optimal offloading solution for traffic offloading in heterogeneous
cellular networks. The authors also include an overview of heterogeneous
cellular networks and explain different traffic offloading paradigms
ranging from uplink traffic offloading through small cells to downlink
traffic offloading via mobile device-to-device cooperation.
This brief is an excellent resource for postgraduate students studying
advanced-level topics in wireless communications and networking.
Researchers, engineers and professionals working in related fields will
also find this brief a valuable resource tool.