Abstract: A wireless receiver device including a wireless network interface and a processor configured to manage reception of data files through the network interface. The processor additionally is configured to determine network or wireless receiver device conditions and to delay reception of blocks of a file, responsive to the determined conditions meeting specific requirements, although the determined conditions allow reception of a block without the delay.
Abstract: A method of preparing data for transmission. The method includes providing a block of data, generating a plurality of first dimension code words including first dimension forward error correction FEC elements, the elements of each code word may be used interchangeably to reconstruct a data portion of the block corresponding to the code word, defining a plurality of second dimension source words formed of the generated elements and generating for at least two of the defined second dimension source words, different numbers of parity elements.
Abstract: A method of multicasting data. The method includes providing a data block for multicasting, generating a plurality of segments that represent the data block, such that a receiver needs to receive fewer than all the generated segments in order to reconstruct the data block, encrypting at least a portion of the generated segments, so as to generate encrypted data units encrypted with a plurality of different keys or encryption methods and transmitting the encrypted data units over one or more multicast channels.