ChannelEstimatorTest.bsv
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上传日期:2014-09-22
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- //----------------------------------------------------------------------//
- // The MIT License
- //
- // Copyright (c) 2007 Alfred Man Cheuk Ng, mcn02@mit.edu
- //
- // Permission is hereby granted, free of charge, to any person
- // obtaining a copy of this software and associated documentation
- // files (the "Software"), to deal in the Software without
- // restriction, including without limitation the rights to use,
- // copy, modify, merge, publish, distribute, sublicense, and/or sell
- // copies of the Software, and to permit persons to whom the
- // Software is furnished to do so, subject to the following conditions:
- //
- // The above copyright notice and this permission notice shall be
- // included in all copies or substantial portions of the Software.
- //
- // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- // OTHER DEALINGS IN THE SOFTWARE.
- //----------------------------------------------------------------------//
- import Complex::*;
- import Controls::*;
- import DataTypes::*;
- import GetPut::*;
- import Interfaces::*;
- import LibraryFunctions::*;
- import PilotInsert::*;
- import Vector::*;
- import ChannelEstimator::*;
- function t idFunc (t in);
- return in;
- endfunction
- function Symbol#(64,2,14) pilotAdder(Symbol#(48,2,14) x,
- Bit#(1) ppv);
-
- Integer i =0, j = 0;
- // assume all guards initially
- Symbol#(64,2,14) syms = replicate(cmplx(0,0));
-
- // data subcarriers
- for(i = 6; i < 11; i = i + 1, j = j + 1)
- syms[i] = x[j];
- for(i = 12; i < 25; i = i + 1, j = j + 1)
- syms[i] = x[j];
- for(i = 26; i < 32 ; i = i + 1, j = j + 1)
- syms[i] = x[j];
- for(i = 33; i < 39 ; i = i + 1, j = j + 1)
- syms[i] = x[j];
- for(i = 40; i < 53 ; i = i + 1, j = j + 1)
- syms[i] = x[j];
- for(i = 54; i < 59 ; i = i + 1, j = j + 1)
- syms[i] = x[j];
- //pilot subcarriers
- syms[11] = mapBPSK(False, ppv); // map 1 to -1, 0 to 1
- syms[25] = mapBPSK(False, ppv); // map 1 to -1, 0 to 1
- syms[39] = mapBPSK(False, ppv); // map 1 to -1, 0 to 1
- syms[53] = mapBPSK(True, ppv); // map 0 to -1, 1 to 1
-
- return syms;
- endfunction
- function Symbol#(48,2,14) pilotRemover(Symbol#(64,2,14) x);
- Integer i =0, j = 0;
- // assume all guards initially
- Symbol#(48,2,14) syms = newVector;
-
- // data subcarriers
- for(i = 6; i < 11; i = i + 1, j = j + 1)
- syms[j] = x[i];
- for(i = 12; i < 25; i = i + 1, j = j + 1)
- syms[j] = x[i];
- for(i = 26; i < 32 ; i = i + 1, j = j + 1)
- syms[j] = x[i];
- for(i = 33; i < 39 ; i = i + 1, j = j + 1)
- syms[j] = x[i];
- for(i = 40; i < 53 ; i = i + 1, j = j + 1)
- syms[j] = x[i];
- for(i = 54; i < 59 ; i = i + 1, j = j + 1)
- syms[j] = x[i];
-
- return syms;
- endfunction
- (* synthesize *)
- module mkChannelEstimatorTest(Empty);
-
- PilotInsert#(PilotInsertCtrl,48,64,2,14) pilotInsert;
- pilotInsert <- mkPilotInsert(idFunc,
- pilotAdder,
- 7'b1001000,
- 7'b1111111);
- ChannelEstimator#(PilotInsertCtrl,64,48,2,14) channelEstimator;
- channelEstimator <- mkChannelEstimator(pilotRemover);
- Reg#(Bit#(32)) cycle <- mkReg(0);
-
- rule putIntput(True);
- PilotInsertMesg#(PilotInsertCtrl,48,2,14) iMesg;
- iMesg = Mesg{ control: (cycle[2:0] == 0) ?
- PilotRst :
- PilotNorm,
- data: replicate(cmplx(1,1))};
- pilotInsert.in.put(iMesg);
- $display("Pilot Insert Input: %h",iMesg.data);
- endrule
-
- rule putChannel(True);
- let oMesg <- pilotInsert.out.get;
- channelEstimator.in.put(oMesg);
- $display("Pilot Insert Output: %h",oMesg.data);
- endrule
-
- rule getOutput(True);
- let oMesg <- channelEstimator.out.get;
- $display("Channel Estimator Output: %h",oMesg.data);
- endrule
-
- rule tick(True);
- cycle <= cycle + 1;
- if (cycle == 100000)
- $finish;
- $display("Cycle: %d",cycle);
- endrule
-
- endmodule