Challenges of 4g.

CHALLENGES:-
• Spectral Efficiencies
• Multi Carrier Modulation (MCM)
• Signal Processing and optimizations
• Extremely Fast Arithmetic (esp. multiplication)
• Smart / Intelligent Antennas
• More Efficient and Sensitive Transreceiver Designs
• All IP Network
• Integration across different topologies
• Distribute intelligence to the edges
• Security and Levels of Quality of Service (QoS)
• Advanced Used interactions / presentation
• Web AI service / Interactive Intelligent Programs