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Wireless Mesh Network with Small and Low Cost Devices

The goal of this project is to implement a wireless mesh network that provides connectivity and multimedia services in a geographic area such as a small campus.

TP-Link MR3020 wireless router.
USB WLAN adapter based on the Ralink RT5370 chipset.
Raspberry Pi Model B.

http://downloads.openwrt.org/attitude_adjustment/12.09/ar71xx/generic/openwrt-ar71xx-generic-tl-mr3020-v1-squashfs-factory.bin opkg update opkg install kmod-rt2800-lib kmod-rt2800-usb kmod-rt2x00-lib kmod-rt2x00-usb

root@OpenWrt:/# wifi detect config wifi-device radio2

      option type     mac80211
      option channel  11
      option macaddr  00:e0:4c:81:88:8a
      option hwmode   11ng
      option htmode   HT20
      list ht_capab   GF
      list ht_capab   SHORT-GI-20
      list ht_capab   SHORT-GI-40
      list ht_capab   RX-STBC1
      # REMOVE THIS LINE TO ENABLE WIFI:
      option disabled 1

config wifi-iface

      option device   radio2
      option network  lan
      option mode     ap
      option ssid     OpenWrt
      option encryption none

wifi detect > /etc/config/wireless root@OpenWrt:/# vi /etc/config/wireless

config wifi-device radio0

      option type     mac80211
      option channel  11
      option macaddr  f8:d1:11:bd:62:ce
      option hwmode   11ng
      option htmode   HT20
      list ht_capab   SHORT-GI-20
      list ht_capab   SHORT-GI-40
      list ht_capab   RX-STBC1
      list ht_capab   DSSS_CCK-40

config wifi-iface

      option device   radio0
      option network  lan   
      option mode     ap    
      option ssid     OpenWrt1
      option encryption none

config wifi-device radio1

      option type     mac80211
      option channel  11      
      option macaddr  00:e0:4c:81:88:8a
      option hwmode   11ng             
      option htmode   HT20             
      list ht_capab   GF  
      list ht_capab   SHORT-GI-20
      list ht_capab   SHORT-GI-40
      list ht_capab   RX-STBC1

config wifi-iface

      option device   radio1            
      option network  lan   
      option mode     ap    
      option ssid     OpenWrt2
      option encryption none

root@OpenWrt:/# wifi up Configuration file: /var/run/hostapd-phy0.conf Using interface wlan0 with hwaddr f8:d1:11:bd:62:ce and ssid “OpenWrt1” Configuration file: /var/run/hostapd-phy1.conf Using interface wlan1 with hwaddr 00:e0:4c:81:88:8a and ssid “OpenWrt2”