@inbook {290, title = {Optimal Resource Allocation in OFDMA Broadcast Channels Using Dynamic Programming}, booktitle = {Recent Advances in Wireless Communications and Networks, Jia-Chin Lin (editor) }, year = {2011}, publisher = {InTech}, organization = {InTech}, chapter = {6}, isbn = {978-953-307-274-6}, doi = {10.5772/777 }, url = {http://www.intechopen.com/books/recent-advances-in-wireless-communications-and-networks}, author = {P{\'e}rez, Jes{\'u}s and V{\'\i}a, Javier and Naz{\'a}bal, Alfredo} }