To my knowledge look into wireless mesh networking where you use several wireless devices to share and extend the wireless signal.
Yeah look into wireless mesh networking, different from ap or repeater but will get the job done and sounds like right up your alley way regarding mesh wireless networking so it is worth a look.
https://en.wikipedia.org/wiki/Wireless_mesh_network
My 2 pence.
p.s. best i can think of recommending the op to look at mesh wireless networking so yeah.
From wikipedia about wireless mesh networking.
Mesh clients are often laptops, cell phones, and other wireless devices. Mesh routers forward traffic to and from the gateways, which may, but need not, be connected to the Internet.
The coverage area of all radio nodes working as a single network is sometimes called a mesh cloud. Access to this mesh cloud depends on the radio nodes working together to create a radio network. A mesh network is reliable and offers redundancy. When one
node can no longer operate, the rest of the nodes can still communicate with each other, directly or through one or more intermediate nodes. Wireless mesh networks can self form and self heal. Wireless mesh networks work with different wireless technologies including
802.11,
802.15,
802.16, cellular technologies and need not be restricted to any one technology or protocol. See also
mesh networking.[
citation nee
Dan.