Data networks
Fundamentals of wireless communication
Fundamentals of wireless communication
On the throughput, capacity, and stability regions of random multiple access
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Protocol design and throughput analysis for multi-user cognitive cooperative systems
IEEE Transactions on Wireless Communications
Stability and delay of finite-user slotted ALOHA with multipacket reception
IEEE Transactions on Information Theory
Achievable rates in cognitive radio channels
IEEE Transactions on Information Theory
Cognitive Multiple Access Via Cooperation: Protocol Design and Performance Analysis
IEEE Transactions on Information Theory
A Case for Amplify–Forward Relaying in the Block-Fading Multiple-Access Channel
IEEE Transactions on Information Theory
Combining queueing theory with information theory for multiaccess
IEEE Journal on Selected Areas in Communications
Power Control and Allocation for MIMO Broadcast Channels in Cognitive Radio Networks
Wireless Personal Communications: An International Journal
Hi-index | 0.01 |
This letter analyzes the impact, from a network-layer perspective, of having a single cognitive radio transmitter-receiver pair share the spectrum with multiple primary users wishing to communicate to a single receiver in a multi-access channel (MAC). In contrast to previous work which assumes a time division multi-access strategy, here, we assume the set of primary users simultaneously access the channel to deliver their packets to a common destination. We derive the symmetric stable throughput regions, consisting of maximal arrival rates for primary and secondary (or cognitive radio) users under two investigated protocols. The first protocol is a conventional MAC scheme where the primary and secondary nodes operate independenly. The second protocol corresponds to a multi-access relay channel (MARC) which exploits user cooperation between primary and secondary nodes. We prove that cooperation is beneficial in the considered MARC as it enables higher throughputs for both primary and secondary users.