?url_ver=Z39.88-2004&rft_id=10.1109%2FAPCC.2011.6152791&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=A.&rft.au=Awang%2C+A.&rft.aulast=Awang&rft.date=2011&rft.title=Adaptive+duty+cycle+using+density+control+in+multihop+wireless+sensor+networks&rft.isbn=9781457703881&rft.genre=proceeding