Heavy Traffic Feasible Hybrid Intracycle and Cyclic Sleep for Power Saving in 10G-EPON

Pseudocode 1

Pseudocode of the sleep control and DBA algorithm.

Abbreviation: CS: Cyclic Sleep; IS: Intra-cycle Sleep;

L: Listen; W: Full Active Work; Th: Threshold

(1)   for   : ONU_number //PART A

(2)    if ( == CS)

(3)    CS when <

(4)    Quit when or Prequit

(5)    end

(6)    if ( < UpCSTh) and ( < DownCSTh)

(7)     if   L

(8)        CS;

(9)     elseif   ISWQuit

(10)      L;

(11)    end

(12)  end

(13) end

(14) Run DBA to determine window sizes; //PART B

(15) for   : ONU_number //PART C

(16)  ;

(17) end

(18) index = sort(difference, ascending);

(19) for   : ONU_number

(20)   = index();

(21)   = upStartTime;

(22)  upStartTime = upStartTime + + GuardTime;

(23)   = downStartTime;

(24)  downStartTime = downStartTime + Down;

(25) end

(26) Select not in CS state one by one: //PART D

(27) start = min(, );

(28) end = max( + , + );

(29) if (start—) ( + cycleDuration—end) > +

(30)  Next = IS when NextStat ~= L;

(31) else

(32)  NextStat = W;

(33) end