Towards dynamic spectrum access in primary OFDMA systems

  title={Towards dynamic spectrum access in primary OFDMA systems},
  author={P{\aa}l Gr\onsund and Hai Ngoc Pham and Paal E. Engelstad},
  journal={2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications},
OFDMA will be the major transmission technology in the future mobile wireless broadband systems, and is already used in Mobile WiMAX and LTE. In this paper, we use simulations to characterize the spectrum usage of such primary systems. This knowledge is useful for cognitive radio and other technologies for dynamic spectrum access that aim at improving the overall spectrum usage. We calculate the available capacity and analyze the distribution of the spectrum occupancy over time for various… CONTINUE READING