说明: #include #include #include using namespace std; class date { protected: int year_; int month_; int day_; public: date(); date(const long& d); date(const int& d, const int& m, co nst int& y); bool valid(void) const; int day() const; int month() co <tangshengye> 在 上传 | 大小:27648
说明: Power scaling for cognitive radio In this paper we explore the idea of using cognitive radios to reuse locally unused spectrum for their own transmissions. <l379661676> 在 上传 | 大小:2097152