Title :
Concepts for reliable satellite communications over blockage channels
Author_Institution :
Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA
Abstract :
We consider concepts for achieving reliable communication to mobile terminals which experience intermittent blockages of their line-of-sight to a transmitting satellite. Two categories of solutions are investigated: automatic repeat request (ARQ), and packet forwarding by a network of cooperative terminals. While the ARQ approaches can achieve reliable communication, low error rates may require several retransmissions, increasing the load on the system and resulting in significant delay and delay-jitter. The cooperative forwarding schemes considered require multiple intermediate terminals in order to provide successful delivery but can provide low error rates with modest system load and relatively little delay and delay-jitter
Keywords :
automatic repeat request; diversity reception; jitter; satellite communication; telecommunication channels; telecommunication network reliability; ARQ; automatic repeat request; blockage channel; cooperative forwarding scheme; delay-jitter; mobile terminal; packet forwarding; reliable satellite communication; Artificial satellites; Automatic repeat request; Delay; Downlink; Error analysis; Mobile communication; Monitoring; Satellite communication; Telecommunication network reliability; Throughput;
Conference_Titel :
Military Communications Conference, 2005. MILCOM 2005. IEEE
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-9393-7
DOI :
10.1109/MILCOM.2005.1605985