Aggressive sub-channel allocation algorithm for efficient dynamic channel allocation in muti-user OFDMA system 報告人  : J.SH...
References <ul><li>SangJun Ko, Joo Heo and KyungHi Chang,  &quot;Aggressive sub-channel allocation algorithm for efficient...
Outline <ul><li>Introduction  </li></ul><ul><ul><li>BABS (Bandwidth Based on SNR) </li></ul></ul><ul><ul><li>ACG  (Amplitu...
Introduction <ul><li>Round Robin </li></ul><ul><li>Proportional fairness </li></ul><ul><ul><li>Chosen the highest Rk(t)/Tk...
Algorithm <ul><li>Step 1 </li></ul><ul><li>determines user to scheduled </li></ul><ul><li>Step 2 </li></ul><ul><li>chose m...
Algorithm(cont.) 06/03/09
Algorithm(cont.) 06/03/09
Performance Validation 06/03/09
Performance Validation(cont.) 06/03/09
Performance Validation(throughput) 06/03/09
Sub-band && users allocation  06/03/09
Conclusion  <ul><li>Not consider fairness </li></ul><ul><ul><li>ASA (Aggressive Sub-channel Allocation) </li></ul></ul><ul...
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Aggressive Subchannel Allocation Algorithm For Efficient Dynamic Channel Allocation In Multi User Ofdma System

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Aggressive Subchannel Allocation Algorithm For Efficient Dynamic Channel Allocation In Multi User Ofdma System

  1. 1. Aggressive sub-channel allocation algorithm for efficient dynamic channel allocation in muti-user OFDMA system 報告人 : J.SHOW 指導教授 : H.H.Liu 06/03/09
  2. 2. References <ul><li>SangJun Ko, Joo Heo and KyungHi Chang, &quot;Aggressive sub-channel allocation algorithm for efficient dynamic channel allocation in muti-user OFDMA system,&quot; </li></ul><ul><li>17ht Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications(PIMRC'06), </li></ul><ul><li>Sept. 2006, page(s):1-5 </li></ul>06/03/09
  3. 3. Outline <ul><li>Introduction </li></ul><ul><ul><li>BABS (Bandwidth Based on SNR) </li></ul></ul><ul><ul><li>ACG (Amplitude Craving Greedy) </li></ul></ul><ul><li>Algorithm </li></ul><ul><ul><li>ASA (Aggressive Sub-channel Allocation) </li></ul></ul><ul><li>Performance Validation </li></ul><ul><li>Conclusion </li></ul>06/03/09
  4. 4. Introduction <ul><li>Round Robin </li></ul><ul><li>Proportional fairness </li></ul><ul><ul><li>Chosen the highest Rk(t)/Tk(t) to transmission </li></ul></ul><ul><li>Bandwidth Based on SNR </li></ul><ul><li>Amplitude Craving Greedy </li></ul>Tk(t) : average throughput Rk(t) : kth user’s channel achievable rate tc : control latency parameter K* : chosen user 06/03/09
  5. 5. Algorithm <ul><li>Step 1 </li></ul><ul><li>determines user to scheduled </li></ul><ul><li>Step 2 </li></ul><ul><li>chose maximum rate sub-channel to the user </li></ul><ul><li>Step 3 </li></ul><ul><li>evaluate date rate </li></ul><ul><li>Step 4 </li></ul><ul><li> chose sub-channel for user </li></ul>06/03/09
  6. 6. Algorithm(cont.) 06/03/09
  7. 7. Algorithm(cont.) 06/03/09
  8. 8. Performance Validation 06/03/09
  9. 9. Performance Validation(cont.) 06/03/09
  10. 10. Performance Validation(throughput) 06/03/09
  11. 11. Sub-band && users allocation 06/03/09
  12. 12. Conclusion <ul><li>Not consider fairness </li></ul><ul><ul><li>ASA (Aggressive Sub-channel Allocation) </li></ul></ul><ul><ul><ul><li>Simple </li></ul></ul></ul><ul><ul><li>Sub-channel && User which is first ! </li></ul></ul>06/03/09

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