  The concept of small worlds is introduced into the physical topology of
wireless networks in this work. A. Helmy provided two con- struction schemes of
small worlds for the wireless networks, link rewiring and link addition, but he
mainly focused on the virtual topology. Based on the broadcasting nature of the
radio transmission, we propose a con- struction scheme of small worlds for the
physical topology of Multiple- Input Multiple-Output (MIMO) wireless networks.
Besides the topology- related topics, we also evaluate the reduction of the
power required by a request.
