As the number of users in a wireless network is large in size that network is called as large wireless networks. http://ns2code.com/
Large wireless network has following concepts:
• Handling Interference problems
• Impact of power
• Multihop cooperative communication
• Cooperative MIMO
• Capacity of distributed MIMO
• Link capacity of the network
• Enhance security
• Quality of service management system
• Real time applications
• Data rate enhancement
• Mobility
• Signaling rate
• Reduce cost
• Improve accuracy