Low Complexity, High throughput wireless architecture

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Low Complexity, High throughput wireless
architecture Dayu Huang Advisor Prof. Sean
Meyn, Prof. Ada S.Y. Poon
Illinois Center for Wireless Systems
GOAL
PROPOSED METHODOLOGY

• Wireless Architecture
• High Throughput
• Low Complexity
• Energy Efficient

• Signaling with energy efficient constellation
  which is also of low decoding complexity.
• Exploring channel fading mechanism.

ISSUES

• Optimal Constellation matching to channel
  statistic leads to simple suboptimal
  constellation that outperforms in throughput
  conventional QAM of the same decoding complexity,
  as indicated by the capacity plot.
• Capacity plot implies ideal case Study with
  simulation of system with proposed constellation
  is in progress, using more realistic channel
  model.
• Impacts of Analog Impairment on proposed
  constellation will be investigated by experiment
  with a FPGA-based Test Bed.

• Constellation on the right has the same decoding
  complexity as 16QAM, but considerably outperforms
  64QAM (left) at high SNR.

WORK IN PROGRESS

• FPGA-based Test Bed

• the system diagram of the test bed